Quarterly Report on Form 10-Q

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934, during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by checkmark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer (See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act).

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x

As of the close of business on July 31, 2007 approximately 199.9 million shares of Quantum Corporation’s common stock were issued and outstanding.

Quantum Corporation (“Quantum”, the “Company”, “us” or “we”) (NYSE: QTM), founded in 1980, is a leading global storage company specializing in backup, recovery and archive solutions. Combining focused expertise, customer-driven innovation and platform independence, we provide a comprehensive, integrated range of disk, tape and software solutions supported by our sales and service organization. We work closely with a broad network of value-added resellers (“VARs”), original equipment manufacturers (“OEMs”) and other suppliers to meet customers’ evolving data protection needs.

The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of Quantum and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated. The interim financial statements reflect all adjustments, consisting only of normal recurring adjustments that, in the opinion of management, are necessary for a fair presentation of the results for the periods shown. The results of operations for such periods are not necessarily indicative of the results expected for the full fiscal year. The Condensed Consolidated Balance Sheet as of March 31, 2007 has been derived from the audited financial statements at that date. However, it does not include all of the information and notes required by accounting principles generally accepted in the United States for complete financial statements. The accompanying financial statements should be read in conjunction with the audited Consolidated Financial Statements for the fiscal year ended March 31, 2007, included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission on June 13, 2007.

On August 22, 2006, we completed our acquisition of Advanced Digital Information Corporation (“ADIC”). ADIC’s results of operations and cash flows are included in our Condensed Consolidated Statements of Operations and Cash Flows from this date.

During the second quarter of fiscal 2007, we changed our accounting estimate related to the valuation of service parts for maintenance. Previously, we amortized the value of our finished goods service parts over a five year period and evaluated the difference between cost and market value for our component service parts on a quarterly basis, recording write-downs if the cost exceeded estimated market value. Beginning in the second quarter of fiscal 2007, we are amortizing all of our service parts for maintenance on a straight-line basis over a total life of eight years and will record additional write-downs when excess and obsolete parts not covered by the amortization are identified. This change in estimate reflects our usage of service parts, which are used to support our products during their life cycles as well as generally five years after a product reaches end of life. In addition to this change in estimate, we have also reclassified service parts for maintenance from current assets to long-term assets to reflect the expected life of these assets. During the three months ended June 30, 2007, we estimated both our cost of revenue and net loss were higher by $2.0 million compared to what would have been recorded using previous estimates. Our net loss increased $0.01 per share for the three months ended June 30, 2007 using the changed estimate.

Certain prior period balances in the Condensed Consolidated Financial Statements have been reclassified to conform to current period presentation. In the Condensed Consolidated Statements of Operations, we began presenting revenue and cost of revenue separately for products and services because our service revenue exceeded 10% of our total revenue. We have made a corresponding adjustment to the Condensed Consolidated Statement of Operations for the three months ended June 30, 2006. Our accounting policy for service revenue and cost of revenue is described in Note 3 below. For the three months ended June 30, 2006, we reclassified $1.8 million from research and development expense and $0.8 million from sales and marketing expense to general and administrative expense to conform to the fiscal year 2008 presentation of the allocation of information technology expenses within operating expenses in the Condensed Consolidated Statement of Operations. In the Condensed Consolidated Balance Sheet as of March 31, 2007, we reclassified $6.5 million from accounts payable to other accrued liabilities. On the Condensed Consolidated Statement of Cash Flows for the three months ended June 30, 2006, we reclassified depreciation and amortization to separate line items. We also reclassified to a separate line item the change in deferred revenue from the change in other assets and liabilities, and we included the change in income taxes payable in the change in other assets and liabilities. These reclassifications have no effect on total assets, stockholders’ equity, net loss or cash flows as previously presented.

The significant accounting policies used in the preparation of our audited Consolidated Financial Statements are disclosed in our Annual Report on Form 10-K for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on June 13, 2007. New significant accounting policies are disclosed below.

Service revenue is derived from contracts for field support provided to our branded customers in addition to professional services and repair services that are not otherwise included in the base price of the product. See our revenue recognition policy in our Annual Report on Form 10-K for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on June 13, 2007. Service does not include revenue or costs associated with basic warranty support on new branded or OEM products. We classify expenses as service cost of revenue by estimating the portion of our total cost of revenue that relates to providing field support to our customers under contract, professional services and repair services. These estimates are based upon a variety of factors, including the nature of the support activity, the cost of stocking and shipping service parts for maintenance and the level of infrastructure required to support the activities that comprise service revenue. In the event our service business changes, our estimates of cost of service revenue may be impacted.

Our stock incentive plans (“Plans”) are broad-based, long-term retention programs that are intended to attract and retain talented employees and align stockholder and employee interests. The Plans provide for the issuance of stock options, stock appreciation rights, stock purchase rights and long-term performance awards to our employees, consultants, officers and affiliates. The Plans have reserved for future issuance 46.8 million shares of stock of which 15.6 million shares of stock were available for grant as of June 30, 2007.

We also have an employee stock purchase plan (“Purchase Plan”) that allows for the purchase of stock at 85% of fair market value at the date of grant or the exercise date, whichever value is less. There were 3.7 million shares available for issuance as of June 30, 2007.

The following table summarizes the share-based compensation charges (in thousands):

The Black-Scholes option pricing model is used to estimate the fair value of options granted under our Plans and rights to acquire stock granted under our Purchase Plan. The weighted-average estimated values of employee stock option grants, as well as the weighted average assumptions used in calculating these values during the first quarter of fiscal 2008 and 2007, were based on estimates at the date of grant as follows:

The fair value of the restricted stock awards granted in the first quarter of fiscal 2008 is the intrinsic value as of the respective grant date since the restricted stock awards are granted at no cost. The weighted-average grant date fair values of restricted stock awards granted during the first quarter of fiscal 2008 and 2007 were $3.01 and $2.63, respectively.

Under the Purchase Plan, rights to purchase shares are granted during the second and fourth quarter of each fiscal year. No rights to purchase shares were granted during the first quarter of fiscal 2008 or 2007.

A summary of activity relating to our stock options is as follows (options and aggregate intrinsic value in thousands):

A summary of activity relating to our restricted stock follows (shares in thousands):

On August 22, 2006 (the “Acquisition Date”), we completed our acquisition of ADIC, a publicly traded provider of storage solutions for the open systems marketplace, pursuant to the terms of the Agreement and Plan of Merger (“Merger Agreement”), dated May 2, 2006. ADIC’s results of operations are included in our Condensed Consolidated Statements of Operations and Cash Flows from the Acquisition Date. We acquired ADIC to expand our global sales force, market access and product offerings into the enterprise and data management software space.

The total purchase price for ADIC is comprised of (in thousands, except share and per-share data):

Pursuant to the Merger Agreement, each outstanding share of ADIC common stock was converted into the right to receive either (a) $12.25 in cash or (b) a number of shares of Quantum common stock equal to the number of ADIC shares of common stock multiplied by 3.461, with ADIC stockholders given the choice to elect to receive cash, stock or a combination of the two.

As of August 22, 2006, ADIC had approximately 2.5 million stock options outstanding. Based on the exchange ratio of 5.9756 calculated in accordance with the formula in the Merger Agreement, we assumed the outstanding options of ADIC, which are exercisable for an aggregate of 14.7 million shares of Quantum common stock. The fair value of options assumed was calculated using a Black-Scholes valuation model with the following assumptions for vested and unvested options assumed, respectively: expected life of 1.4 to 2.7 years, risk-free interest rate of 5.22% and 5.07%, expected volatility of 36.8% to 45.8% and no dividend yield. The portion of the estimated fair value of unvested ADIC options related to future service is being recognized over the remaining vesting period.

The total purchase price was allocated to ADIC’s net tangible and identifiable intangible assets based on their estimated fair values as set forth below. The excess of the purchase price over the net tangible and identifiable intangible assets was recorded as goodwill. The estimates and assumptions underlying the fair values below are subject to change with regard to completion of the ADIC integration plan and finalizing restructuring costs (in thousands):

Both goodwill and current liabilities decreased by $0.5 million from March 31, 2007 as a result of a net decrease in the estimate of severance benefits to be paid to certain pre-merger ADIC employees. In performing our purchase price allocation, we considered, among other factors, our intention for future use of acquired assets, analyses of historical financial performance and estimates of future performance of ADIC’s products. The fair value of intangible assets was based, in part, on a valuation completed by a third-party valuation firm using a discounted cash flow approach and other valuation techniques as well as estimates and assumptions provided by management. The following table sets forth the components of intangible assets associated with the acquisition and the weighted-average amortization period (fair value in thousands):

Purchased technology, which comprises products that have reached technological feasibility, includes products in most of ADIC’s product lines, principally the ADIC Scalar^® i2000^TM and Scalar i500^TM libraries and StorNext^® data management software. It also includes a combination of ADIC processes, patents and trade secrets related to the design and development of ADIC’s products. This proprietary know-how can be leveraged to develop new technology and improve our products. Customer lists represent the underlying relationships and agreements with ADIC’s installed customer base.

We expensed in-process research and development (IPR&D) upon acquisition as it represented incomplete ADIC research and development projects that had not reached technological feasibility and had no alternative future use as of the Acquisition Date.

Technological feasibility is established when an enterprise has completed all planning, designing, coding and testing activities that are necessary to establish that a product can be produced to meet its design specifications including functions, features and technical performance requirements. The value assigned to IPR&D of $14.7 million was determined by considering the importance of each project to our overall development plan, estimating costs to develop the purchased IPR&D into commercially viable products, estimating the resulting net cash flows from the projects when completed and discounting the net cash flows using a discount rate of 18% to their present value based on the percentage of completion of the IPR&D projects. Purchased IPR&D relates to projects associated with the ADIC Scalar i2000 and Scalar i500 products that had not yet reached technological feasibility as of the Acquisition Date and have no alternative future use.

We have currently not identified any material pre-acquisition contingencies. If we identify a material pre-acquisition contingency during the remainder of the purchase price allocation period, we will attempt to determine its fair value and include it in the purchase price allocation. If information becomes available to us prior to the end of the one year purchase price allocation period which would indicate that it is probable that such events had occurred and the amounts can be reasonably estimated, such items will be included in the purchase price allocation.

At June 30, 2007, marketable securities were comprised of auction rate securities. At June 30, 2007, both the cost basis and the fair value of our marketable securities were $10.0 million. During the three months ended June 30, 2007 and June 30, 2006, sales of marketable securities resulted in no gains or losses.

Other investments consist of privately held technology companies and private technology venture limited partnerships and are recorded in other long-term assets on the Condensed Consolidated Balance Sheets. At June 30, 2007, we held $1.6 million of investments in private technology venture limited partnerships that are accounted for under the equity method and $0.3 million in other investments in a privately held technology company that is accounted for under the cost method. We realized a gain of $2.1 million during the first quarter of fiscal 2008 from the sale of shares in a privately held technology company that completed an initial public offering during June 2007. This gain is included in interest and other income, net on the Condensed Consolidated Statements of Operations. We did not have investments in private technology venture limited partnerships or investments in privately held technology companies in the first quarter of fiscal 2007.

We review non-marketable equity investments on a regular basis to determine if there has been any impairment of value which is other than temporary by reviewing their financial information, gaining knowledge of any new financing or other business agreements and assessing their operating viability. There were no impairments in the first quarter of fiscal 2008.

At June 30, 2007, we had $6.9 million of inventory consisting primarily of raw materials in assets held for sale on the Condensed Consolidated Balance Sheet. See Note 18, Malaysia Subsidiary Sale, below.

As of June 30, 2007 and March 31, 2007, goodwill and intangible assets, net of amortization, were $575.2 million and $588.6 million, respectively, and represented approximately 52% of total assets. We evaluate goodwill for impairment annually during the fourth quarter of our fiscal year, or more frequently when indicators of impairment are present.

Acquired intangible assets are amortized over their estimated useful lives, which generally range from one to ten years. In estimating the useful lives of intangible assets, we consider the following factors:

The following tables provide a summary of the carrying value of intangible assets that will continue to be amortized (in thousands):

The total amortization expense related to intangible assets is provided in the table below (in thousands):

The total expected future amortization related to intangible assets is provided in the table below (in thousands):

The following table details the quarterly change in the accrued warranty balance (in thousands):

We generally warrant our products against defects for periods ranging from 3 to 36 months. A provision for estimated future costs and estimated returns for credit relating to warranty is recorded when products are shipped and revenue recognized. Our estimate of future costs to satisfy warranty obligations is primarily based on historical trends and, if believed to be significantly different from historical trends, estimates of future failure rates and future costs of repair including materials consumed in the repair and labor and overhead amounts necessary to perform the repair.

If future actual failure rates differ from our estimates, we record the impact in subsequent periods. If future actual costs to repair were to differ significantly from our estimates, we would record the impact of these unforeseen cost differences in subsequent periods.

We have certain financial guarantees, both express and implied, related to product liability and potential infringement of intellectual property. Other than certain product liabilities recorded as of June 30, 2007, we did not record a liability associated with these guarantees, as we have little or no history of costs associated with such indemnification requirements. Contingent liabilities associated with product liability may be mitigated by insurance coverage that we maintain.

In the normal course of business to facilitate transactions of our services and products, we indemnify certain parties with respect to certain matters. We have agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or out of intellectual property infringement or other claims made against certain parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, we have entered into indemnification agreements with our officers and directors, and our bylaws contain similar indemnification obligations to our agents.

It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by us under these agreements have not had a material impact on our operating results, financial position or cash flows.

Note 10 Convertible Subordinated Debt, Long-Term Debt and Interest Rate Collar

On July 30, 2003, we issued 4.375% convertible subordinated notes in the aggregate principal amount of $160 million in a private placement transaction. The notes are unsecured obligations subordinated in right of payment to all of our existing and future senior indebtedness. The notes mature on August 1, 2010 and are convertible at the option of the holders at any time prior to maturity into an aggregate of 36.8 million shares of Quantum common stock at a conversion price of $4.35 per share. We cannot redeem the notes prior to August 5, 2008.

As of June 30, 2006, we had a secured senior credit facility with a group of banks, providing us with a $145 million revolving credit line which was scheduled to mature in October 2008. On August 22, 2006, the revolving credit line was terminated and replaced by a new secured senior credit facility with a group of lenders that provides a $150 million revolving credit line, a $225 million term loan and a $125 million second lien term loan which mature on August 22, 2009, August 22, 2012 and August 22, 2013, respectively.

During the first quarter of fiscal 2008, we borrowed $50.0 million on the revolving credit line and made payments of $20.0 million and $6.3 million on the revolving credit line and the term loan, respectively.

As of June 30, 2007, the outstanding balances were $55.0 million on the revolving credit line, $206.3 million on the term loan and $125.0 million on the second lien term loan. The interest rate at June 30, 2007 was 9.32% on the term loan and 13.57% on the second lien term loan. Interest rates on the outstanding revolving credit line at June 30, 2007 were 8.32% on $25 million borrowed and 9.05% on $30 million borrowed. See Note 18, Debt Refinancing, below.

We have an interest rate no cost collar instrument that fixes the interest rate on $87.5 million of our variable rate term loans between a three month LIBOR rate floor of 4.64% and a cap of 5.49% through December 2008. Whenever the three month LIBOR rate is greater than the cap, we receive from the financial institution the difference between 5.49% and the current three month LIBOR rate on the notional amount. Conversely, whenever the three month LIBOR rate is lower than the floor, we remit to the financial institution the difference between 4.64% and the current three month LIBOR rate on the notional amount. During the first quarter of fiscal 2008, the three month LIBOR rate was within the floor and cap.

The interest rate collar did not meet all of the criteria necessary for hedge accounting prescribed by SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities. We recorded the change in fair market value in other long-term assets in the Condensed Consolidated Balance Sheets and in interest income and other, net in the Condensed Consolidated Statements of Operations. As of June 30, 2007, the market value of the interest rate collar was $30,000. We do not engage in hedging activity for speculative or trading purposes.

During fiscal 2007, management approved and began executing plans to restructure certain operations of Quantum and pre-merger ADIC to eliminate redundant costs resulting from the acquisition of ADIC, implement strategic roadmap decisions and improve efficiencies in operations. In the first quarter of fiscal 2008, we continued to implement our roadmap decisions and actions to improve efficiencies in operations. The restructuring charges that resulted from these cost reduction efforts relate to consolidation of our operations and partnering with a third party on certain research and development efforts. Substantial steps have been completed as of June 30, 2007, and the associated costs have been recorded.

The following tables show the type of restructuring expense for the three months ended June 30, 2007 and June 30, 2006 (in thousands):

During the first quarter of fiscal 2008, our severance and benefits expenses were primarily the result of our decision to partner with a third party on certain research and development efforts and to a lesser extent actions to improve efficiencies in operations. We expect the majority of these charges to be paid to the impacted employees during the second and third quarters of fiscal 2008. The $8.1 million in severance expenses in the first quarter were offset in part by reversals of $0.5 million primarily due to new information regarding certain employees subject to previous restructuring actions. In comparison, during the first quarter of fiscal 2007, a $0.1 million net charge was recorded for severance as part of the continuing effort to streamline our marketing and information technology functions.

We continued activities to consolidate our operations into fewer locations during the first quarter of fiscal 2008. We vacated a portion of our Boulder, Colorado facility, resulting in restructuring charges of $0.9 million and had $0.4 million in fixed asset write-offs related to leasehold improvements in consolidating operations within our existing European locations.

In addition to the restructuring charges incurred this quarter, we had $0.5 million in net reversals related to restructuring costs associated with exiting activities of pre-merger ADIC. The reversals were primarily due to severance and benefits costs for employees whose positions were retained in a variety of functions throughout the world. These reversals were recognized as a reduction of the liability assumed in the purchase business combination and were included in the allocation of the cost to acquire ADIC and, accordingly, resulted in a decrease to goodwill rather than an expense reduction in the first quarter of fiscal 2008.

The following tables show the activity during the three months ended June 30, 2007 and the estimated timing of future payouts for cost reduction actions as of June 30, 2007 (in thousands):

The $14.8 million restructuring accrual as of June 30, 2007 is comprised of obligations for severance and benefits and vacant facilities for both Quantum and pre-merger ADIC in addition to noncancellable purchase obligations for research and development programs and moving services. The severance and benefits charges and the noncancellable purchase obligations will be paid during fiscal 2008. The facilities charges relating to vacant facilities in Boulder, Colorado, and Ithaca, New York will be paid over their respective lease terms, which continue through fiscal 2013.

Additional charges may be incurred in the future related to these restructurings, particularly if the actual costs associated with restructured activities are higher than estimated. During the remainder of fiscal 2008, we plan additional implementation of integration savings plans to reduce our ongoing cost structure by consolidating facilities. Until we achieve sustained profitability, we may incur additional charges in the future related to further cost reduction steps. Future charges that we may incur associated with future cost reduction activities are not estimable at this time.

We had a tax benefit of $1.0 million for the three months ended June 30, 2007 as compared to tax expense of $15,000 for the three months ended June 30, 2006. The current quarter’s tax benefit reflects expenses for foreign income taxes and state taxes of $1.2 million offset by a benefit of $2.2 million related to tax positions in foreign jurisdictions settled during the quarter. The provision for the three months ended June 30, 2006 reflected foreign income taxes and state taxes, net of expected tax refunds.

As a result of our implementation of FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes, an interpretation of SFAS No. 109, Accounting for Income Taxes (“FIN No. 48”), we recognized a $1.2 million decrease to the April 1, 2007 accumulated deficit balance due to adjustments for certain unrecognized tax benefits. At April 1, 2007, we had approximately $15.9 million in total unrecognized tax benefits.

During the quarter ended June 30, 2007, we recorded a net decrease in our unrecognized tax benefits primarily due to closure of the examination of certain foreign subsidiaries. The total unrecognized tax benefit remaining at June 30, 2007 amounted to $13.8 million, including interest. Of this total, $5.9 million, if recognized, would favorably affect the effective tax rate. We historically classified unrecognized tax benefits in current taxes payable, which are included in other accrued liabilities on the Condensed Consolidated Balance Sheets. As a result of adoption of FIN No. 48, the $13.8 million of unrecognized tax benefits were reclassified to long-term income taxes payable and are included in other long-term liabilities on the June 30, 2007 Condensed Consolidated Balance Sheet.

We recognize interest and penalties related to uncertain tax positions in income tax expense. To the extent accrued interest and penalties do not become payable, amounts accrued will be reduced and reflected as a reduction of the overall income tax provision in the period that such determination is made. At June 30, 2007 accrued interest and penalties totaled $1.3 million.

We file our tax returns as prescribed by the laws of the jurisdictions in which we operate. Our U.S. tax returns have been audited for years through 2002 by the Internal Revenue Service. In other major jurisdictions, we are generally open to examination for the most recent three to five fiscal years.

Although timing of the resolution and closure on audits is highly uncertain, we do not believe it is reasonably possible that the unrecognized tax benefits would materially change in the next 12 months.

The following tables set forth the computation of basic and diluted net loss per share (in thousands, except per-share data):

The computations of diluted net loss per share for the periods presented excluded the effect of the following because the effect would have been antidilutive:

Total comprehensive loss, net of tax, if any, for the three months ended June 30, 2007 and 2006, respectively, is presented in the following table (in thousands):

On August 7, 1998, we were named as one of several defendants in a patent infringement lawsuit filed in the U.S. District Court for the Northern District of Illinois, Eastern Division. The plaintiff, Papst Licensing GmbH (“Papst”), owns numerous United States patents, which Papst alleges are infringed upon by hard disk drive products that were sold by our former hard disk drive business. In October 1999, the case was transferred to a federal district court in New Orleans, Louisiana, where it has been joined with other lawsuits involving Papst for purposes of coordinated discovery under multi-district litigation rules. The other lawsuits have Maxtor, Minebea Limited, and several other companies as parties. As part of the disposition of our hard disk drive business, HDD, to Maxtor in April 2001, Maxtor assumed the defense of the Papst claims and agreed to indemnify us with respect to litigation relating to this dispute. Maxtor has subsequently been acquired by Seagate, which has assumed Maxtor’s defense and indemnification obligations.

On May 18, 2006, a lawsuit was filed in King County Superior Court, Seattle, Washington, naming ADIC and its directors as defendants. The lawsuit is a purported class action filed by Richard Carrigan on behalf of an alleged class of ADIC’s shareholders. Plaintiff alleged, among other things, that the director defendants breached their fiduciary duties in approving the proposed acquisition of ADIC by Quantum that was publicly announced on May 2, 2006. The suit sought to enjoin the defendants from consummating the proposed acquisition and other relief. Though the acquisition has since been consummated, the lawsuit remained pending and we have continued discussions with the plaintiff to reach a resolution. In January 2007, the parties entered into a memorandum of understanding to settle the litigation and the parties submitted agreement to the Court for approval in May 2007, which was preliminarily approved. A hearing for final approval is expected to occur in August 2007.

We lease certain facilities under noncancellable lease agreements. Some of the leases have renewal options ranging from one to ten years and others contain escalation clauses and provisions for maintenance, taxes or insurance. See future minimum lease payments under operating leases and sublease income in Note 18 in the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on June 13, 2007.

As of June 30, 2007, we had commitments to provide an additional $1.4 million in capital funding towards investments we currently hold in two limited partnership venture capital funds. We will invest funds as required until our remaining commitments are satisfied.

We use contract manufacturers for certain manufacturing functions. Under these arrangements, the contract manufacturer procures inventory to manufacture products based upon our forecast of customer demand. We are responsible for the financial impact on the contract manufacturer of any reduction or product mix shift in the forecast relative to materials that the contract manufacturer had already purchased under a prior forecast. Such a variance in forecasted demand could require a cash payment for finished goods in excess of current customer demand or for costs of excess or obsolete inventory. As of June 30, 2007, we had issued non-cancelable purchase orders for $53.9 million to purchase finished goods from our contract manufacturers and had accrued $2.7 million and $2.8 million as of June 30, 2007 and March 31, 2007, respectively, for finished goods in excess of current customer demand or for the costs of excess or obsolete inventory.

In February 2006, the FASB issued SFAS No. 155, Accounting for Certain Hybrid Instruments (“SFAS No. 155”), which amends SFAS No. 133 and SFAS No. 140, Accounting for Transfers and Servicing of Financial Assets and Extinguishments of Liabilities (“SFAS No. 140”). SFAS No. 155 allows financial instruments that have embedded derivatives to be accounted for as a whole (eliminating the need to bifurcate the derivative from its host) if the holder elects to account for the whole instrument on a fair value basis. SFAS No. 155 also clarifies and amends certain other provisions of SFAS No. 133 and SFAS No. 140. This statement is effective for all financial instruments acquired or issued in fiscal years beginning after September 15, 2006, and became effective for us in the first quarter of fiscal 2008. Adoption of this standard did not have a significant impact on our financial position or results of operations.

In June 2006, the FASB issued FIN No. 48. Under FIN No. 48, a company recognizes the benefit from a tax position only if it is more-likely-than-not that the position would be sustained upon audit based solely on the technical merits of the tax position. FIN No. 48 clarifies how a company would measure the income tax benefits from the tax positions that are recognized, provides guidance as to the timing of the derecognition of previously recognized tax benefits and describes the methods for classifying and disclosing the liabilities within the financial statements for any unrecognized tax benefits. FIN No. 48 also addresses when a company should record interest and penalties related to tax positions and how the interest and penalties may be classified within the income statement and presented in the balance sheet. FIN No. 48 is effective for fiscal years beginning after December 15, 2006 and became effective for us in the first quarter of fiscal 2008. See Note 12 for the impact on our financial position and results of operations from adoption of FIN No. 48.

In September 2006, the FASB issued SFAS No. 157, Fair Value Measurements (“SFAS No. 157”). SFAS No. 157 defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles and expands disclosures about fair value measurements. This statement applies to other accounting pronouncements that require or permit fair value measurements. This statement is effective for financial statements issued for fiscal years beginning after November 15, 2007, and is effective for us beginning in fiscal 2009. Adoption of this standard is not expected to have a significant impact on our financial position or results of operations.

In February 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial Liabilities. This statement permits entities to choose to measure many financial instruments and certain other items at fair value. Unrealized gains and losses for which the fair value option has been elected will be reported in earnings. This statement is effective for us beginning in fiscal 2009. We are currently evaluating the impact this statement will have, if any, on our consolidated financial position or results of operations.

On July 1, 2007 we completed an agreement for the sale of a Malaysia subsidiary to a third party contract manufacturer for approximately $8.2 million in cash. We effectively sold the assets of our Malaysian manufacturing operation, including the facility, inventory and other assets at book value offset by certain liabilities assumed in the sale. In connection with this agreement, the approximately 600 employees employed by us at June 30, 2007 transferred their employment to the third party contract manufacturer on July 1, 2007. Net assets held for sale at June 30, 2007 related to this transaction were as follows (in thousands):

On July 12, 2007, we entered into a senior secured credit agreement (“the new credit agreement”) with a group of lenders, providing a $50 million revolving credit facility and a $400 million term loan and borrowed $400 million on the term loan to repay all borrowings under our secured senior credit facility dated August 22, 2006. We have incurred loan fees for this debt refinancing which will be capitalized and included in other long-term assets and then amortized to interest expense over the loan term commencing in the second quarter of fiscal 2008. In conjunction with the repayment of our existing secured senior credit facility, the unamortized debt costs of $8.1 million related to that borrowing will be expensed in the second quarter of fiscal 2008.

The $400 million term loan matures on July 12, 2014, but is subject to accelerated maturity on February 1, 2010 if we do not repay, refinance to extend the maturity date of, or convert into equity the existing $160 million convertible subordinated debt prior to February 1, 2010. Interest accrues on the term loan at either, at our option, a prime rate plus a margin of 2.5% or LIBOR plus a margin of 3.5%. As of July 12, 2007, the interest rate on the term loan was 8.82%. Beginning on September 30, 2007, a principal payment on the term loan in an amount equal to $1.0 million will be payable quarterly with a final payment of all outstanding principal and interest to be paid at maturity. The term loan may be prepaid at any time, subject to an additional payment of 1.0% of the principal amount being prepaid for any prepayment made before July 12, 2008. In addition, on an annual basis commencing with the fiscal year ending March 31, 2008, we are required to perform a calculation of excess cash flow which may result in additional prepayment of the principal amount.

Under the new credit agreement, we have the ability to borrow up to $50 million under a senior secured revolving credit facility, of which up to $35 million is available in the form of letters of credit and up to $5 million is available for short-term borrowings under a swing line facility. Interest accrues on the revolving credit facility at either, at our option, a prime rate plus a margin of 2.5% or LIBOR plus a margin of 3.5%. We did not borrow under the revolving credit facility. Annually, we are required to pay a 0.5% commitment fee on undrawn amounts under the revolving credit facility.

The revolving credit facility and term loan under the new credit agreement are secured by a blanket lien on all of our assets and contain certain financial and reporting covenants which we are required to satisfy as a condition of the credit facility and term loan.

This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements in this report usually contain the words “will,” “estimate,” “anticipate,” “expect”, “believe” or similar expressions and variations or negatives of these words. All such forward-looking statements including, but not limited to, (1) our expectation that we will continue to derive a substantial majority of our revenue from products based on our tape technology; (2) our expectations regarding the amounts and timing of any future restructuring charges, including cost savings resulting therefrom; (3) our belief that strong competition in the tape drive, tape media and tape automation systems markets will result in further price erosion; (4) our belief that we have sufficient resources to cover the remaining tax liability under the Tax Sharing and Indemnity Agreement with Maxtor; (5) our belief that our existing cash and capital resources will be sufficient to meet all currently planned expenditures and sustain our operations for the next 12 months; (6) our expectation that we will return to profitability; (7) our goals for our future operating performance, including our revenue growth, amount and mix, our expectations regarding revenue, gross margin and operating expenses for fiscal 2008 and our cash flows; (8) our belief that our ultimate liability in any infringement claims made by any third parties against us will not be material to us; (9) our belief that we may make additional acquisitions in the future; (10) our belief that our total foreign exchange rate exposure is not material; (11) our expectations regarding the benefits of our acquisition of ADIC, including that the combined company will allow us to grow our business and improve our results of operations; (12) our expectations regarding the timing of recognized compensation costs related to our equity awards; (13) our expectations relating to our growth into disk, software and services markets; and (14) our business objectives, key focuses, opportunities and prospects are inherently uncertain as they are based on management’s expectations and assumptions concerning future events, and they are subject to numerous known and unknown risks and uncertainties. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. As a result, our actual results may differ materially from the forward-looking statements contained herein. Factors that could cause actual results to differ materially from those described herein include, but are not limited to, (1) the amount of orders received in future periods; (2) our ability to timely ship our products; (3) uncertainty regarding IT spending and the corresponding uncertainty in the demand for tape drives and tape automation products; (4) our ability to realize anticipated benefits from the ADIC acquisition; (5) our ability to achieve anticipated pricing, cost and gross margin levels, particularly on tape drives, given lower volumes and continuing price and cost pressures; (6) the successful execution of our strategy to expand our businesses into new directions; (7) our ability to successfully introduce new products; (8) our ability to achieve and capitalize on changes in market demand; (9) our ability to pay down the principal and interest on our indebtedness; (10) our ability to maintain supplier relationships; and (11) those factors discussed under “Risk Factors” in Part II of this Quarterly Report on Form 10-Q. Our forward-looking statements are not guarantees of future performance. We disclaim any obligation to update information in any forward-looking statement.

Quantum Corporation (“Quantum”, the “Company”, “us” or “we”), founded in 1980, is a leading global storage company specializing in backup, recovery and archive. Combining focused expertise, customer-driven innovation and platform independence, we provide a comprehensive, integrated range of disk, tape and software solutions supported by our sales and service organization. We work closely with a broad network of value-added resellers (“VARs”), original equipment manufacturers (“OEMs”) and other suppliers to meet customers’ evolving data protection needs.

We offer a broad range of solutions in the data storage market, providing performance and value to organizations of all sizes, from Global 2000 enterprises to small businesses and satellite offices. We have a broad portfolio of disk-based backup solutions and are a leading provider of tape libraries and autoloaders, as well as a top supplier of tape drives and media. Our data management software provides technology for shared workflow applications and multi-tiered archiving in high-performance, large-scale storage environments. In addition, our service plan includes a broad range of coverage options to provide the level of support for the widest possible range of information technology environments, with service available in 180 countries.

We earn our revenue from the sale of products, systems and services through an array of channel partners to reach end user customers, which range in size from small businesses to government agencies and large, multinational corporations. Our products are sold under both the Quantum brand name and under the names of various OEM customers. We face a variety of challenges and opportunities in responding to the competitive dynamics of the technology market which is characterized by rapid change, evolving customer demands and intense competition, including competition with several companies that are also significant customers.

We currently are focused on three primary objectives: to expand market access, mainly by building a stronger branded business; to create a stronger growth platform, particularly by expanding our disk-based backup systems and our software businesses; and to improve our financial position, taking advantage of cost savings and enhanced revenue and profit opportunities from our acquisition of ADIC in the prior fiscal year. In measuring our progress toward these objectives, we are focused on growing our branded business to at least 60 percent of non-royalty revenue, maintaining our quarterly media royalty revenue in the $20 million to $30 million range, driving growth in both the disk-based backup systems and in software solutions to deliver $30 million in revenue by the last quarter of fiscal 2008, and generating cash and repaying our debt.

For the first quarter of fiscal 2008, our service revenue exceeded 10% of our total revenue. As a result, we began presenting revenue and cost of revenue separately for products and services. We have made a corresponding reclassification to the Condensed Consolidated Statement of Operations for the three months ended June 30, 2006. See Notes 2 and 3 of the Notes to Condensed Consolidated Financial Statements for additional information. The following discussion and analysis gives effect to this separate presentation.

During the first quarter of fiscal 2008, both revenue and gross margin increased compared to the first quarter of fiscal 2007 primarily due to our acquisition of ADIC in the second quarter of fiscal 2007. Product revenue increases were led by increases in our system automation products in both branded and OEM channels. We also had increases in service revenues in the first three months of fiscal 2008 compared to fiscal 2007. These increases were partially offset by decreases in revenue from devices and media within our product revenue category and decreased royalty revenue. Gross margin percentage increased primarily due to the change in sales mix as the proportion of product sales through our branded channels comprised 58% of non-royalty revenue in the first quarter of fiscal 2008 as compared to 47% in the prior year. Sales of branded products typically generate higher gross margins than sales to our OEM customers.

Operating expenses also increased compared to the first quarter of the prior year primarily due to our acquisition of ADIC. Research and development and sales and marketing expenses increased largely due to increased salaries and benefits from headcount increases compared to the first quarter of fiscal 2007. General and administrative expenses increased primarily due to increased facilities and related expenses.

We realized a gain of $2.1 million on the sale of Data Domain shares we sold as a selling stockholder in its initial public offering. We received the shares as consideration for a license fee relating to a patent cross licensing agreement completed in the fourth quarter of fiscal 2007. The increase in interest expense was related to the outstanding debt we used to finance our acquisition of ADIC.

On July 1, 2007 we sold our manufacturing operation in Penang, Malaysia to a third party contract manufacturer after the quarter ended for approximately $8.2 million. In connection with this agreement, the approximately 600 employees employed by us at June 30, 2007 transferred their employment to the third party contract manufacturer on July 1, 2007. The third party manufacturer will manufacture and supply products for us, expanding our existing outsource manufacturing relationship. The final sale price decreased from an estimated $11.6 million as disclosed in our Form 8-K as filed with the Securities and Exchange Commission on July 6, 2007, to $8.2 million primarily due to a reduction in net inventory. We have $8.2 million in assets held for sale, net on the June 30, 2007 Condensed Consolidated Balance Sheet related to this transaction.

On July 12, 2007, we entered into a new credit agreement with a group of lenders and we repaid the June 30, 2007 balances of our existing revolving credit line and term loans. Our new credit agreement provides us a $50 million revolving credit facility and a $400 million term loan which matures in July 2014, but is subject to accelerated maturity on February 1, 2010 if we do not repay, refinance to extend the maturity date of, or convert into equity our existing $160 million convertible subordinated debt prior to February 1, 2010. The $50 million senior secured revolving credit facility includes up to $35 million available in the form of letters of credit and up to $5 million available for short-term borrowings under a swing line facility. As of August 3, 2007, we had not borrowed from the revolving credit line and our outstanding term debt balance was $400 million at an interest rate of 8.82%. The revolving credit facility and term loan are secured by a blanket lien on all of our assets and contain certain financial and reporting covenants. Our weighted average interest rate on the revolving and term debt will decrease from 10.53% in the first quarter of fiscal 2008 to approximately 9% in the second quarter of fiscal 2008 due to the new credit agreement. The decreased interest rates commencing in the second quarter of fiscal 2008 will reduce future interest expense.

Total revenue increased in the first quarter of fiscal 2008 compared to the first quarter of fiscal 2007 primarily due to increased product revenue as well as service revenue largely due to our acquisition of ADIC in the second quarter of fiscal 2007. There were no revenues related to ADIC in the first quarter of the prior year. The increases in product and service revenue were partially offset by decreases in royalty revenue.

Our product revenue, which includes sales of our hardware and software products sold through both our Quantum branded and OEM channels, increased for the three months ended June 30, 2007 compared to the three months ended June 30, 2006, primarily due to increased revenue for systems automation products and, to a lesser extent, sales of disk-based backup systems and software solutions. These revenue increases were partially offset by a decline in devices and non-royalty media revenue compared to the same period of the prior year.

System automation sales increases were largely due to our acquisition of ADIC which was completed during the second quarter of fiscal 2007. Our midrange tape automation line, including the Scalar^® i500^TM, was the strongest contributor to total systems revenue and product sales growth in the first quarter of fiscal 2008, with sales to both branded and OEM customers. In addition, we had increases in branded system automation sales of our enterprise products. The disk-based backup and software revenue category increased in the first quarter of fiscal 2008 primarily due to our StorNext^® software sales.

Product revenue from devices, which includes tape drives and removable hard drives, and non-royalty media sales declined compared to the first quarter of fiscal 2007 due to the continuing retirement of older tape drives, especially our older, entry-level drives sold by OEMs. We also de-emphasized sales of non-royalty media during the quarter compared to the prior year due to market pricing that would have resulted in lower margins on the non-royalty media products.

Service revenue, which includes sales of contracts to extend the warranty or to provide faster response time, or both, increased compared to the same period of the prior year largely due to our acquisition of ADIC. Service revenue from professional services provided to customers and from repair services also increased compared to the prior year. We anticipate our service revenue will increase in the future as our installed base of branded products grows.

Tape media royalties decreased in the first quarter of fiscal 2008 due to lower media unit sales sold through our OEM customers. Royalties related to our newer LTO products have been increasing, but at a slower rate than declines in royalties from our maturing DLT products, where we experienced a net reduction in the installed base of DLTtape^® drives. We expect LTO royalties will continue to increase as the installed base grows and DLT royalties will further decline over time as its installed base continues to decrease.

The increase in gross margin percentage during the three months ended June 30, 2007 compared to the three months ended June 30, 2006 was largely due to the acquisition of ADIC, which helped drive an increase in the percentage of our product sales through branded channels. Sales of branded products typically generate higher gross margins than sales to our OEM customers. Offsetting the increased margin from product and service gross margin increases was the lower proportion of royalty revenues to total revenue. The improvement in gross margin was also offset in part by increases in non-cash expenses, including an increase in amortization of intangible assets of $4.4 million for the three months ended June 30, 2007 as well as increased amortization of service parts for maintenance.

Product gross margin increased primarily due to the higher proportion of sales of products through branded channels at 58% of non-royalty revenue in the first quarter of fiscal 2008 as compared to 47% of non-royalty revenue in the prior year. In addition, our gross margin on products sold through both branded and OEM channels increased in the first three months of fiscal 2008 compared to gross margins for product sales through branded and OEM channels for the same period of the prior year due to a shift in sales mix toward higher margin automation, disk-based and software products. During the first quarter of fiscal 2008, we continued to implement cost cutting measures to decrease cost of sales by taking advantage of our scale.

Service gross margin increased in the first quarter of fiscal 2008 compared to the first quarter of fiscal 2007 primarily due to our acquisition of ADIC. Our service revenue and service costs of revenue both increased; however, service revenue increased more relative to the increased cost of service revenue associated with expanding our service infrastructure.

Research and development expenses increased during the first quarter of fiscal 2008 primarily due to the acquisition of ADIC. Increases were primarily in salaries and benefits due to higher headcount than the first quarter of fiscal 2007 and depreciation expense of the assets supporting our research and development team. These increased expenses were partially offset by decreased expenses from product launches completed in the prior year period.

The increase in sales and marketing expenses during the three months ended June 30, 2007 was primarily due to the acquisition of ADIC. Increases were primarily in salaries and benefits due to higher headcount than the first quarter of fiscal 2007. Additionally, amortization of intangibles increased $3.2 million for the three months ended June 30, 2007 related to our acquisition of ADIC. We are focused on sales of our higher margin branded products, which have higher sales and marketing related expenses than sales through OEM channels. We had increased spending on marketing programs during the first quarter of fiscal 2008 compared to the prior year.

The increase in general and administrative expenses during the three months ended June 30, 2007 was primarily due to the acquisition of ADIC. The increase was primarily due to facilities and related expenses offset in part by decreased salaries and benefits as we have realigned our management structure compared to the first quarter of fiscal 2007.

The increase in interest income and other, net for the first quarter of fiscal 2008 as compared to the first quarter of fiscal 2007 was primarily due to a realized gain on the sale of Data Domain shares we sold as a selling stockholder in its initial public offering. We received the shares as consideration for a licensing fee relating to a patent cross licensing agreement completed in the fourth quarter of fiscal 2007.

The increase in interest expense in the three month period ended June 30, 2007 was due to the debt facilities entered into during the second quarter of fiscal 2007 to fund our acquisition of ADIC. Interest expense for the three months ended June 30, 2007 also includes the amortization of debt issuance costs for debt facilities. For further information, refer to Note 10 “Convertible Subordinated Debt, Long-Term Debt and Interest Rate Collar” in the Condensed Consolidated Financial Statements.

Significant management judgment is required in determining our deferred tax assets and liabilities and valuation allowances for purposes of assessing our ability to realize any future benefit from our net deferred tax assets. We intend to maintain this valuation allowance until sufficient positive evidence exists to support a reversal or decrease in this allowance. Future income tax expense will be reduced to the extent that we have sufficient positive evidence to support a reversal of, or decrease in, our valuation allowance.

The following tables show the type of restructuring expense for the three months ended June 30, 2007 and June 30, 2006 (in thousands):

In addition to the restructuring charges incurred this quarter, we had $0.5 million net reversals related to restructuring costs associated with exiting activities of pre-merger ADIC. The reversals were primarily due to severance and benefits costs for employees whose positions were retained in a variety of functions throughout the world. These reversals were recognized as a reduction of the liability assumed in the purchase business combination and were included in the allocation of the cost to acquire ADIC and, accordingly, resulted in a decrease to goodwill rather than an expense reduction in the first quarter of fiscal 2008.

The following tables show the activity during the three months ended June 30, 2007 and the estimated timing of future payouts for cost reduction actions as of June 30, 2007 (in thousands):

The following tables detail intangible asset amortization expense by classification within our Condensed Consolidated Statements of Operations (in thousands):

The increase of amortization of intangible assets is primarily due to our acquisition of ADIC. For further information regarding amortization of intangible assets, refer to Note 8 “Goodwill and Intangible Assets” to the Condensed Consolidated Financial Statements.

The following table summarizes the effects of share-based compensation resulting from the application of SFAS No. 123R to options and restricted stock awards and units granted under our Plans and rights to acquire stock under our Purchase Plan (in thousands):

The difference between reported net loss and cash used in operating activities during the first quarter of fiscal 2008 was primarily due to cash used to fund operations offset largely by non-cash items such as depreciation and amortization. Cash

used to fund operations during the period was primarily due to a $25.8 million increase in accounts receivable and a $6.8 million decrease in accounts payable offset in part by a $7.9 million decrease in inventories. Accounts receivable increased primarily due to slower collections in the first quarter of fiscal 2008 after strong collections in the fourth quarter of fiscal 2007. Accounts payable decreased primarily due to lower inventory levels and the timing of payments to suppliers. Inventories decreased as a result of ongoing inventory reduction efforts.

Cash provided by investing activities during the first three months of fiscal 2008 reflects proceeds from the sale of marketable securities of $90.0 million offset in part by $65.0 million in purchases of marketable securities. In addition, we purchased $4.7 million of property and equipment during the quarter ended June 30, 2007.

Cash provided by financing activities during the first quarter of fiscal 2008 was primarily due to borrowings of $50.0 million reduced by repayments of $26.3 million, as well as $2.7 million net proceeds received from the issuance of common stock related to employee stock incentive plans.

Cash used in operating activities during the first quarter of fiscal 2007 primarily reflected changes in working capital that provided less cash than was used by the loss from operations, adjusted for non-cash items such as depreciation and amortization, deferred income taxes, gain on the closure of the Ireland facility and share-based compensation related to stock incentive plans.

The cash used in working capital during the first quarter of fiscal 2007 was primarily due to a $4.9 million increase in accounts receivable, a $6.2 million increase in service parts for maintenance in order to meet the Restriction of Hazardous Substances (“RoHS”) compliance requirements for service parts and a $7.1 million decrease in accrued restructuring charges from severance payments made during the quarter. The increases in accounts receivable in the first quarter of fiscal 2007 was primarily due to a higher percentage of revenue generated in the last month of the first quarter of fiscal 2007.

Cash used in investing activities during the first quarter of fiscal 2007 of $40 million reflected purchases of marketable securities and purchases of property and equipment. These uses were partially offset by proceeds received from sales of marketable securities and proceeds received from sale of the Ireland facility.

Cash provided by financing activities during the first quarter of fiscal year 2007 of $0.3 million reflected net proceeds received from issuance of common stock.

We have made progress in reducing operating costs, and we will continue to focus on improving our operating performance, including increasing revenue, reducing costs and improving margins in an effort to return to consistent profitability and to generate positive cash flows from operating activities. We believe that our existing cash and capital resources will be sufficient to meet all currently planned expenditures, repayment of debt, contractual obligations and sustain operations for at least the next 12 months. This belief is dependent upon our ability to maintain revenue around current levels, to maintain or improve gross margins, and to reduce operating expenses in order to provide net income and positive cash flow from operating activities in the future. This belief also assumes we will not be forced to make any additional significant cash payments or otherwise be impacted by restrictions of available cash associated with our existing credit facilities.

Should any of the above assumptions prove incorrect, either in combination or individually, it would likely have a material negative effect on our cash balances and capital resources. As of June 30, 2007, we had credit available on our credit facility, described further in the “Long-Term Debt” section below.

Generation of positive cash flow from operating activities has historically been an important source of our cash to fund operating needs and, prospectively, will be required for us to fund our business and to meet our current and long-term obligations. We have taken many actions to offset the negative impact of increased competition in the backup, archive and recovery market. We cannot provide assurance that the actions we have taken in the past or any actions we may take in the future will ensure a consistent, sustainable and sufficient level of net income and positive cash flow from operating activities to fund, sustain or grow our businesses. Certain events that are beyond our control, including prevailing economic, competitive and industry conditions, as well as various legal and other disputes, may prevent us from achieving these financial objectives. Any inability to achieve consistent and sustainable net income and cash flow could result in:

Any lack of renewal, or waiver or amendment, if needed, could result in the revolving credit line and term loans becoming unavailable to us and any amounts outstanding becoming immediately due and payable. In the case of our secured senior credit facility at June 30, 2007, this would mean $386.3 million would be immediately payable.

Any of the above mentioned items, individually or in combination, would have a material and adverse effect on our results of operations, available cash and cash flows, financial condition, access to capital and liquidity.

On July 12, 2007, we entered into a senior secured credit agreement (“the new credit agreement”) with a group of lenders, providing a $50 million revolving credit facility and a $400 million term loan and borrowed $400 million on the term loan to repay all borrowings under our secured credit facility dated August 22, 2006. We have incurred loan fees for this debt refinancing which will be capitalized and included in other long-term assets and then amortized to interest expense over the loan term commencing in the second quarter of fiscal 2008. In conjunction with the repayment of our existing secured senior credit facility, the unamortized debt costs of $8.1 million related to that borrowing will be expensed in the second quarter of fiscal 2008.

As of June 30, 2007, we have commitments related to repayment of our debt as described in Note 10 to the Condensed Consolidated Financial Statements. We have commitments to purchase inventory of $53.9 million, described further in Note 16 to the Condensed Consolidated Financial Statements. We also have commitments related to our operating leases. Refer to our Annual Report on Form 10-K for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on June 13, 2007.

During the first quarter of fiscal 2008, we implemented FIN No. 48 which clarifies the accounting for uncertainty in tax positions and as of June 30, 2007, we have $13.8 million of unrecognized tax benefits for which we cannot make a reasonably reliable estimate of the amount and period of payment.

As of June 30, 2007, we have commitments to provide an additional $1.4 million in capital funding towards investments we currently hold in two limited partnership venture capital funds. Payments are made as capital calls are received, thus we cannot estimate when those payments will be made.

As of June 30, 2007, there was approximately $87.9 million remaining on our authorization to repurchase Quantum common stock. No stock repurchases were made during the three months ended June 30, 2007. Our ability to repurchase common stock is restricted under our credit facilities.

Our discussion and analysis of the financial condition and results of operations is based on the accompanying Condensed Consolidated Financial Statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these statements requires us to make significant estimates and judgments about future uncertainties that affect reported assets, liabilities, revenues and expenses and related disclosures. We base our estimates on historical experience and on various other assumptions believed to be reasonable under the circumstances. In the event that estimates or assumptions prove to be different from actual results, adjustments are made in subsequent periods to reflect more current information. We believe that the following accounting policies require our most difficult, subjective or complex judgments because of the need to make estimates about the effect of matters that are inherently uncertain. The judgments and uncertainties that affect the application of those policies in particular could result in materially different amounts being reported under different conditions or using different assumptions.

Revenue from sales of hardware products to distributors, VARs, OEMs and end-users is recognized when the criteria of Staff Accounting Bulletin No. 104, Revenue Recognition, have been met: when passage of title and risk of ownership are transferred to customers; when persuasive evidence of an arrangement exists; when the price to the buyer is fixed or determinable; and when collection is reasonably assured. When significant post-delivery obligations exist, the related revenue is deferred until such obligations are fulfilled. If there are customer acceptance criteria in the contract, we recognize revenue upon end user acceptance, which typically occurs after delivery and installation are completed.

In the period when the revenue is recognized, allowances are provided for estimated future price adjustments, such as volume rebates, price protection and future product returns. These allowances are based on the customers’ master agreements, programs in existence at the time the revenue is recognized, historical information, contractual limits and plans regarding price adjustments and product returns. If we were unable to reliably estimate the amount of future price adjustments and product returns in any specific reporting period, then we would be required to defer recognition of the revenue until the right to future price adjustments and product returns lapsed and we were no longer under any obligation to reduce the price or accept the return of the product.

We license certain intellectual property to third party manufacturers under arrangements that are represented by master contracts, allowing these third party manufacturers to manufacture and sell certain of our products. As consideration for licensing the intellectual property, the licensees pay us a per-unit royalty for sales of their products that incorporate the licensed technology. On a periodic basis, the licensees provide us with unit reports that include the quantity of units sold to end users subject to royalties. We recognize revenue based on the unit reports, which are provided to us in a timely fashion. The unit report substantiates that the delivery has occurred. Royalty revenue is measured by multiplying the units sold as reflected in the unit reports by the royalty per unit in accordance with the royalty agreements. Royalty payments are made to us on a per unit basis at a stipulated per unit amount.

Revenue equal to the separately stated price of extended warranty and product service contracts for our hardware products is initially deferred and recognized as revenue ratably over the contract period in accordance with FASB Technical Bulletin 90-1, Accounting for Separately Priced Extended Warranty and Product Maintenance Contracts. For other arrangements, when elements such as hardware and services are contained in a single arrangement, or in related arrangements with the same customer, we allocate revenue to the separate elements based on relative fair value, provided we have fair value for all elements of the arrangement. If in an arrangement we have fair value for undelivered elements but not the delivered element, we defer the fair value of the undelivered elements and the residual revenue is allocated to the delivered elements. Undelivered elements typically include installation and services. If fair value does not exist for undelivered elements, then revenue for the entire arrangement is deferred until all elements have been delivered.

Revenue from software sales is recognized when the criteria of Statement of Position No. 97-2, Software Revenue Recognition (“SOP 97-2”), have been met. These criteria include persuasive evidence of an arrangement, delivery of the software, a fixed and determinable fee, probable collection and vendor-specific objective evidence of fair value for undelivered elements. Vendor-specific objective evidence is typically based on the price charged when an element is sold separately or, if an element is not sold separately, on the price established by authorized management, if it is probable that the price, once established, will not change before market introduction. We recognize revenue from software sales upon delivery provided that there is no customer acceptance clause in the purchase order or contract, there are no significant post-delivery obligations remaining, the price is fixed and collection of the resulting receivable is reasonably assured. When significant post-delivery obligations exist, the related revenue is deferred until such obligations are fulfilled. If there are customer acceptance criteria in the contract, we recognize revenue upon end user acceptance, which typically occurs after delivery and installation are completed. Revenue from postcontract customer support agreements, which entitle customers to both support and upgrades during the term of the agreement, when-and-if available, is recognized ratably over the life of the agreement. EITF Issue No. 03-5, Applicability of AICPA Statement of Position 97-2 to Non-Software Deliverables in an Arrangement Containing More-Than-Incidental Software (“EITF 03-5”), affirms that the revenue recognition guidance in SOP 97-2 also applies to non-software deliverables, such as computer hardware, in an arrangement if the software is essential to the functionality of the non-software deliverables. We do not currently have any non-software deliverables for which software is essential to the functionality.

Service revenue is derived from contracts for field support provided to our branded customers in addition to professional services and repair services that are not otherwise included in the base price of the product. Service does not include revenue or costs associated with basic warranty support on new branded or OEM products. We classify expenses as service cost of revenue by estimating the portion of our total cost of revenue that relates to providing field support to our customers under contract, professional services and repair services. These estimates are based upon a variety of factors, including the nature of the support activity, the cost of stocking and shipping service parts for maintenance and the level of infrastructure required to support the activities that comprise service revenue. In the event our service business changes, our estimates of cost of service revenue may be impacted.

We generally warrant our products against defects for 3 to 36 months from the date of sale and provide warranty service on tape drives on a return-to-factory basis. Our tape automation systems may carry service agreements available to customers to

extend or upgrade the warranty service. We perform services to support warranty and service obligations for tape drives, automation systems and other storage products. We also provide automation systems warranty service from our facilities in Colorado Springs, Colorado. Jabil Global Service provides screen and repair services in Reynosa, Mexico for North America tape drives and in Szombathely, Hungary for Europe, Middle East and Africa (“EMEA”) tape drives. Benchmark Electronics, Inc. (“BEI”) provides automation systems warranty service in Redmond, Washington and Huntsville, Alabama. In addition, we employ various other third party service providers throughout the world that perform tape drive and automation systems repair and warranty services for us.

We estimate future failure rates based upon historical product failure trends as well as anticipated future failure rates if believed to be significantly different from historical trends. Similarly, we estimate future costs of repair based upon historical trends and anticipated future costs if they are expected to significantly differ. We use a model and exercise considerable judgment in determining the underlying estimates. Our model requires an element of subjectivity for all of our products. For example, historical rates of return are not completely indicative of future return rates and we must therefore exercise judgment with respect to future deviations from our historical return rate. When actual failure rates differ significantly from our estimates, we record the impact of these unforeseen costs or cost reductions in subsequent periods and update our assumptions and forecasting models accordingly. As our new products mature and we continue to experience improved quality on our existing products, we are able to improve our estimates with respect to these products. It is reasonably likely that assumptions will be updated for failure rates and, therefore, impact warranty expense liability in the future.

Similarly, we are in the process of consolidating and outsourcing manufacturing repair sites, which affect the future costs of repair. Our expected costs associated with this initiative consist of outsourcing product repairs to third parties, with whom we negotiate on-going outsourcing arrangements, as well as transition costs from in-house repair to outsourcing. If the actual costs were to differ significantly from our estimates, we would record the impact of unforeseen costs or cost reductions in subsequent periods.

Our inventory is stated at the lower of cost or market, with cost computed on a first-in, first-out basis (“FIFO”). Adjustments to reduce the cost of inventory to its net realizable value, if required, are made for estimated excess, obsolescence or impaired balances. Factors influencing these adjustments include decline in demand, rapid technological changes, product life cycle and development plans, component cost trends, product pricing, physical deterioration and quality issues. Revisions to these adjustments would be required if these factors differ from our estimates.

We value our service parts for maintenance at amortized cost less adjustments for excess or obsolete parts, if any. We carry service parts because we generally provide product warranty for 3 to 36 months and earn revenue by providing enhanced warranty and repair service outside this warranty period. Service parts consist of both component parts, which are primarily used to repair defective units, and finished units, which are provided for customer use permanently or on a temporary basis while the defective unit is being repaired. Cost includes direct material, direct labor, overhead and other direct costs. Estimates of excess and obsolete parts involve significant estimates and judgments about the future, including the estimated amount of component parts expected to be consumed in the future warranty and out of warranty service and the estimated number of parts required to meet future customer needs. Amortization of the aggregate service parts is computed on a straight-line basis over the estimated useful life of eight years. Should the technology or our customers’ service needs change and cause an increase or decrease in the estimated useful lives of such service parts, an adjustment to expense would be recorded.

We have a significant amount of goodwill and intangible assets on our balance sheet related to acquisitions. Intangible assets are carried and reported at acquisition cost, net of accumulated amortization subsequent to acquisition. Intangible assets are amortized over the estimated useful lives, which generally range from one to ten years. Intangible assets are reviewed for impairment whenever events or circumstances indicate impairment might exist in accordance with SFAS No. 144,

Accounting for the Impairment or Disposal of Long-lived Assets. Projected undiscounted net cash flows expected to be derived from the use of those assets are compared to the respective net carrying amounts to determine whether any impairment exists. Impairment, if any, is based on the excess of the carrying amount over the fair value of those assets.

The determination of the net carrying value of goodwill and intangible assets and the extent to which, if any, there is impairment are dependent on material estimates and judgments on our part, including the useful life over which the intangible assets are to be amortized, and the estimates of the value of future net cash flows, which are based upon further estimates of future revenues, expenses and operating margins. In applying SFAS No. 142, Goodwill and Other Intangible Assets, we review our goodwill annually for impairment in the fourth fiscal quarter, or more frequently when indicators of impairment are present.

In recent periods and over the past several years, we recorded significant restructuring charges related to the realignment and restructuring of our business operations. These charges represent expenses incurred in connection with certain cost reduction programs and acquisition integrations that we have implemented and consist of the cost of involuntary termination benefits, separation benefits, facilities charges, asset write-offs and other restructuring costs.

The charges for severance and exit costs require the use of estimates, primarily related to the number of employees paid severance, the amount of severance and related benefits to be paid primarily based on years of service or statutory requirements and the cost of exiting facilities. Facilities exit costs typically require estimates and assumptions related to future maintenance costs, our ability to secure a sub-tenant, if applicable, and any sublease income to be received in the future.

We account for severance and other postemployment benefits resulting from involuntary terminations in accordance with SFAS No. 112, Employers’ Accounting for Postemployment Benefits (“SFAS No. 112”) because we maintain a benefit plan with defined termination benefits from which payment amounts are reasonably estimable. Under SFAS No. 112, we record a severance liability at the time management commits to a plan with sufficient detail to reasonably estimate benefits.

We account for facilities and all other restructuring charges not subject to SFAS No. 112 in accordance with SFAS No. 146, Accounting for Costs Associated with Exit or Disposal Activities, (“SFAS No. 146”). SFAS No. 146 requires that a liability for a cost associated with an exit or disposal activity be recognized when the liability is incurred rather than at the date of an entity’s commitment to an exit plan. SFAS No. 146 establishes fair value as the objective for initial measurement of the liability. Any employee benefit arrangements not subject to SFAS No. 112 that require future service beyond a minimum retention period are recognized over the future service period. Restructuring charges we have incurred under SFAS No. 146 in recent years include facilities charges, noncancellable purchase commitments and fixed asset write-offs.

We account for income taxes in accordance with SFAS No. 109 Accounting for Income Taxes (“SFAS No. 109”), and Interpretation No. 48, Accounting for Uncertainty in Income Taxes an interpretation of SFAS No. 109, which requires that deferred tax assets and liabilities be recognized for the effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. SFAS No. 109 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax asset will not be realized.

We have provided a full valuation allowance against our U.S. net deferred tax assets due to our history of net losses, difficulty in predicting future results and our conclusion that we cannot rely on projections of future taxable income to realize the deferred tax assets. In addition, we have provided a full valuation allowance against certain of our international net deferred tax assets. Due to reorganizations in these jurisdictions, it is unclear whether we will be able to realize a benefit from these deferred tax assets.

Significant management judgment is required in determining our deferred tax assets and liabilities and valuation allowances for purposes of assessing our ability to realize any future benefit from our net deferred tax assets. We intend to maintain this valuation allowance until sufficient positive evidence exists to support the reversal of the valuation allowance. Future income tax expense will be reduced to the extent that we have sufficient positive evidence to support a reversal or decrease in this allowance.

We believe that, based on current applicable tax laws, we have provided adequate amounts and recorded liabilities for probable and estimable tax adjustments that may be proposed by various taxing authorities in the U.S. and foreign jurisdictions. These estimated liabilities are recorded on a quarterly basis and estimates are revised based upon new information that was not available at the time of prior estimates. Our estimates have in the past been subject to change and we

expect that some of our estimates will be subject to change in the future. While our estimated liabilities are recorded based upon existing tax laws, events may occur in the future that indicate payments of these amounts will be less than estimated, in which event, reversals of these liabilities would create tax benefits that we would recognize in the periods when we determine that the liabilities have been reduced. Conversely, events may occur in the future that indicate that payments of these amounts will be greater than estimated, in which event we would record tax charges and additional liabilities. For example, we may in the future, decide to negotiate with tax authorities regarding our tax liability in a particular jurisdiction, which could result in a different outcome than our estimated liability. In addition, the regulatory audit statute of limitations for a particular jurisdiction may expire without us becoming subject to an audit by that jurisdiction or an audit may occur but result in a smaller tax liability than we had estimated, and we would no longer be required to incur any or all of the liability for that audit, as the case may be.

See Note 17 “Recent Accounting Pronouncements” to the Condensed Consolidated Financial Statements for a full description of recent accounting pronouncements including the respective expected dates of adoption and effects on our results of operations and financial condition.

We are exposed to a variety of risks, including changes in interest rates and foreign currency fluctuations.

Changes in interest rates affect interest income earned on our cash equivalents and marketable securities and interest expense on short-term and long-term borrowings.

Our cash equivalents and marketable securities consisted primarily of money market funds and auction rate securities, respectively, during the three months ended June 30, 2007. The main objective of these investments is safety of principal and liquidity while maximizing return, without significantly increasing risk. A hypothetical 100 basis point decrease in interest rates would have resulted in an approximate $0.3 million decrease in interest income for the three months ended June 30, 2007.

As of June 30, 2007, our senior credit facilities were comprised of a $150 million revolving credit facility expiring in August 2009, a $225 million term loan expiring in August 2012 and a second lien term loan of $125 million expiring in August 2013. Borrowings under the revolving credit facility and term loans bear interest at either the London interbank offering rate (“LIBOR”) with option periods of one to nine months or a base rate, plus a margin determined by a senior leverage ratio as defined in the credit agreement. A hypothetical 100 basis point increase in interest rates would have resulted in an approximately $1.0 million increase in interest expense for the three months ended June 30, 2007.

As of June 30, 2007 our outstanding convertible subordinated notes in the aggregate principal amount of $160 million have a fixed interest rate of 4.375% paid semi-annually in February and August, and mature on August 1, 2010 (refer to Note 10 “Convertible Subordinated Debt, Long-Term Debt and Interest Rate Collar” to the Condensed Consolidated Financial Statements).

We have an interest rate no cost collar instrument that fixes the interest rate on $87.5 million of our variable rate term loans between a three month LIBOR floor of 4.64% and a cap of 5.49% through December 2008. During the first quarter of fiscal 2008, the three month LIBOR rate was within the floor and cap; therefore there was no impact to our interest expense from the interest rate collar.

As a multinational corporation, we are exposed to changes in foreign exchange rates. These exposures may change over time and could have a material adverse impact on our financial results. During the three months ended June 30, 2007, we did not utilize foreign currency forward contracts to manage the risk of exchange rate fluctuations because we believed that we had a natural hedge through our worldwide operating structure. We do not anticipate any material effect on our consolidated financial position utilizing our current hedging strategy.

The information contained in Note 15 “Litigation” to the Condensed Consolidated Financial Statements is incorporated into this Part II, Item 1 by reference.

THE READER SHOULD CAREFULLY CONSIDER THE RISKS DESCRIBED BELOW, TOGETHER WITH ALL OF THE OTHER INFORMATION INCLUDED IN THIS ANNUAL REPORT ON FORM 10-K, BEFORE MAKING AN INVESTMENT DECISION. THE RISKS AND UNCERTAINTIES DESCRIBED BELOW ARE NOT THE ONLY ONES FACING QUANTUM. ADDITIONAL RISKS AND UNCERTAINTIES NOT PRESENTLY KNOWN TO US OR THAT ARE CURRENTLY DEEMED IMMATERIAL MAY ALSO IMPAIR OUR BUSINESS AND OPERATIONS. THIS QUARTERLY REPORT ON FORM 10-Q CONTAINS “FORWARD-LOOKING” STATEMENTS THAT INVOLVE RISKS AND UNCERTAINTIES. PLEASE SEE “MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS” OF THIS REPORT FOR ADDITIONAL DISCUSSION OF THESE FORWARD-LOOKING STATEMENTS.

We derive almost all of our revenue from products incorporating tape technology. If competition from alternative storage technologies continues or increases, our business, financial condition and operating results would be materially and adversely harmed.

We derive almost all of our revenue from products that incorporate some form of tape technology and we expect to continue to derive a substantial majority of our revenue from these products for the foreseeable future. As a result, our future operating results depend on the continued market acceptance of products employing tape drive technology. Our tape products, including tape drives and automation systems, are increasingly challenged by products using hard disk drive technology, such as Virtual Tape Libraries (VTL), standard disk arrays and Network Attached Storage (NAS). Hard disk drives have experienced a trend toward lower prices while capacity and performance have increased. If disk-based backup products gain comparable or superior market acceptance, or their costs decline more rapidly than tape drive and media costs, the competition resulting from these products would increase as customers migrate toward them, which could materially and adversely affect our business, financial condition and operating results.

Competition has increased, and may increasingly intensify, in the tape drive and tape automation markets as a result of competitors introducing products based on new technology standards, which could materially and adversely affect our business, financial condition and results of operations.

We compete with companies that develop, manufacture, market and sell tape drive and tape automation products. The principal competitors for our tape drive products include Hewlett-Packard, IBM and Sony. These competitors are aggressively trying to advance and develop new technologies and products to compete against our technologies and products. For instance, LTO technology, which was developed by Certance, Hewlett-Packard and IBM, targets the high-capacity data backup market and competes directly with our products based on Super DLTtape^TM technology. Hewlett-Packard and IBM thus compete not only with our Super DLTtape^TM products but now compete with the LTO product offerings that we acquired through our acquisition of Certance. This competition has resulted in a trend, which is expected to continue, toward lower prices and lower margins earned on our DLTtape^® and Super DLTtape^TM drives and media. Additionally, over the last two years, our DLT and Super DLTtape^TM drives have lost market share to LTO based products, and we cannot provide assurance that our tape technology based products will not continue to lose market share to LTO based products in the future. These factors, and additional factors, such as the possibility of industry consolidation, when combined with the current environment of intense competition, which has resulted in reduced shipments of our tape drive products, could result in a further reduction in our prices, volumes and margins, which could materially and adversely impact our business, financial condition and results of operations.

Our tape automation products compete with product offerings of Dell, EMC IBM and Sun, which offer tape automation systems incorporating DLTtape^® and Super DLTtape^TM technology as well as LTO technology. Increased competition has resulted in increased price competition. If this trend continues or worsens, if competition further intensifies, or if industry consolidation occurs, our sales and gross margins could decline, which would materially and adversely affect our business, financial condition and results of operations.

A large percentage of our sales come from a few customers, and these customers have no minimum or long-term purchase commitments. The loss of, or a significant reduction in demand from, one or more key customers could materially and adversely affect our business, financial condition and operating results.

Our sales have been and continue to be concentrated among a few customers. Sales to our top five customers in fiscal 2007 represented 42% of total revenue. This sales concentration does not include revenues from sales of our media that our licensees sold to our top five customers, for which we earn royalty revenue. Furthermore, customers are not obligated to purchase any minimum product volume and our relationships with our customers are terminable at will. In fiscal 2007, sales to Dell contributed approximately 20% of our revenue. If we experience a significant decline in revenue from Dell, we could be materially and adversely affected.

In addition, many of our tape products are primarily incorporated into larger storage systems or solutions that are marketed and sold to end-users by our large OEM customers. Because of this, we have limited market access to these end-users, limiting our ability to reach and influence their purchasing decisions. These market conditions further our reliance on these large OEM customers. Thus if they were to significantly reduce, cancel or delay their orders with us, our results of operations could be materially adversely affected.

We borrowed a significant amount to fund our acquisition of ADIC, substantially increasing our debt service obligations and constraining our ability to operate our business. Unless we are able to generate sufficient cash flows from operations to meet these debt obligations, our business financial condition and operating results will be materially and adversely affected.

In connection with our acquisition of ADIC, we borrowed $496.5 million in August 2006, adding a significant amount of indebtedness and interest expense to our obligations. As of June 30, 2007, the total amount outstanding from these borrowings was $386.3 million. Our level of indebtedness presents significant risks to investors, both in terms of the constraints that it places on our ability to operate our business and because of the possibility that we may not generate sufficient cash to pay the principal of and interest on our indebtedness as it becomes due.

In addition, there is a risk that we may not be able to repay our debt obligations as they become due. We have incurred significant losses since 2001. Our ability to meet our debt service obligations (and fund our working capital, capital expenditures, acquisitions, research and development and other general corporate needs) will depend upon our ability to generate sufficient cash flow from operations. We cannot provide assurance that we will generate sufficient cash flow from operations to service these debt obligations, or that future borrowings or equity financing will be available to us on commercially reasonable terms or at all, or available in an amount sufficient to enable us to pay our debt obligations or fund our other liquidity needs. Unless we are able to improve our cash flows from operations we may not generate sufficient cash flow to service our debt obligations, which would require that we reduce or delay capital expenditures and/or sell assets, thereby affecting our ability to remain competitive and materially and adversely affecting our business. Such a failure to repay our debt obligations when due would also result in our default under our loan agreements, which would give our lenders the right to seize all of our assets. Any such inability to meet our debt obligations would therefore have a material and adverse effect on our business, financial condition and results of operations.

Our credit agreement contains various covenants that limit our discretion in the operation of our business, which could have an adverse effect on our business, financial condition and results of operations.

Our current credit agreement contains numerous restrictive covenants that require us to comply with and maintain certain financial tests and ratios, thereby restricting our ability to:

Our ability to comply with covenants contained in our credit agreement may be affected by events beyond our control, including prevailing economic, financial and industry conditions. Even if we are able to comply with all covenants, the restrictions on our ability to operate our business could harm our business by, among other things, limiting our ability to take advantage of financings, mergers, acquisitions and other corporate opportunities. In addition, we may seek to refinance certain of our indebtedness in the future. We cannot assure you that additional financing will be available on terms favorable to us, or at all.

Our credit agreement is secured by a pledge of all of our assets. If we were to default under our credit agreement and were unable to obtain a waiver for such a default, the lenders would have a right to foreclose on our assets in order to satisfy our obligations under the credit agreement. Any such action on the part of the lenders against us could have a materially adverse impact on our business, financial condition and results of operations.

Our operating results depend on new product introductions, which may not be successful, in which case our business, financial condition and operating results may be materially and adversely affected.

To compete effectively, we must continually improve existing products and introduce new ones, such as our recently introduced DXi series products, GoVault and enhanced Scalar i500 and Scalar i2000 products and next generation StorNext software. We have devoted and expect to continue to devote considerable management and financial resources to these efforts. We cannot provide assurance that:

If we are not successful in timely completion of our new product qualifications and then ramping sales to our key customers, our revenue and results of operations could be adversely impacted. In addition, if the quality of our products is not acceptable to our customers, this could result in customer dissatisfaction, lost revenue and increased warranty and repair costs.

Our tape royalty business generates a relatively high gross margin contribution, significantly impacting the total company gross margin. If we were to experience a significant decline in royalty revenue and corresponding gross margin contribution, our business, financial condition, and operating results would be materially and adversely affected.

Our tape royalty and media gross margin rates and revenues are dependent on many factors, including the following factors:

Competition from other tape technologies has had a significant negative impact on our income from media as well as on our sales of tape drives. Similarly, competition among media suppliers has periodically resulted in intense, price-based competition for media sales, which also affects media income. If either of these competitive factors continues or intensifies, it would further erode tape drive unit sales, tape drive installed base, media units and media pricing. To the extent that our Quantum branded media revenue and media royalties depend upon media pricing and the quantity of media consumed by the installed base of our tape drives, reduced media prices, or a reduced installed tape drive base, would result in further reductions in our Quantum branded media and media royalty revenue and gross margin rates. This would materially and adversely affect our business, financial condition, and results of operations.

From time to time we make acquisitions, such as our acquisition of ADIC. The failure to successfully integrate recent or future acquisitions could harm our business, financial condition and operating results.

As a part of our business strategy, we have in the past and expect in the future to make acquisitions, or significant investments in, complementary companies, products or technologies, such as our acquisition of ADIC. If we fail to successfully integrate such acquisitions, it could harm our business, financial condition and operating results. Risks that we may face in our efforts to integrate any recent or future acquisitions include, among others:

Acquisitions present many risks, and we may not realize the financial and strategic goals that were contemplated at the time of any transaction. We cannot provide assurance that we will be able to successfully integrate any business, products, technologies or personnel that we may acquire in the future, and our failure to do so could harm our business, financial condition and operating results.

We have taken considerable steps towards reducing our cost structure and may take further cost reduction actions. The steps we have taken and may take in the future may not reduce our cost structure to a level appropriate in relation to our future sales and therefore, these anticipated cost reductions may be insufficient to bring us back to profitability.

In the last four years, we have recorded significant restructuring charges and made cash payments in order to reduce our cost of sales and operating expenses to rationalize our operations following past acquisitions and in response to adverse economic, industry and competitive conditions. We may take future steps to further reduce our operating costs. These steps and additional future restructurings in response to rationalization of operations following future acquisitions, strategic decisions or adverse changes in our business and industry may require us to make cash payments that, if large enough, would materially and adversely affect our liquidity. We may be unable to reduce our cost of sales and operating expenses at a rate and to a level consistent with a future potential adverse sales environment, which may adversely affect our business, financial condition and operating results.

Third party intellectual property infringement claims could result in substantial liability and significant costs, and, as a result, our business, financial condition, and operating results may be materially and adversely affected.

From time to time, third parties allege our infringement of and need for a license under their patented or other proprietary technology. While we currently believe the amount of ultimate liability, if any, with respect to any such actions will not materially affect our financial position, results of operations, or liquidity, the ultimate outcome of any license discussion or litigation is uncertain. Adverse resolution of any third party infringement claim could subject us to substantial liabilities and require us to refrain from manufacturing and selling certain products. In addition, the costs incurred in intellectual property litigation can be substantial, regardless of the outcome. As a result, our business, financial condition, and operating results could be materially and adversely affected.

In addition, certain products or technologies acquired or developed by us may include so-called “open source” software. Open source software is typically licensed for use at no initial charge. Certain open source software licenses, however, require users of the open source software to license to others any software that is based on, incorporates or interacts with, the open source software under the terms of the open source license. Although we endeavor to comply fully with such requirements, third parties could claim that we are required to license larger portions of our software than we believe we are required to license under open source software licenses. If such claims were successful, they could adversely impact our competitive position and financial results by providing our competitors with access to sensitive information that may help them develop competitive products. In addition, our use of open source software may harm our business and subject us to intellectual property claims, litigation or proceedings in the future because:

As a result of our global manufacturing and sales operations, we are subject to a variety of risks that are unique to businesses with international operations of a similar scope, any of which could, individually or in the aggregate have a material adverse effect on our business:

A significant portion of our manufacturing and sales operations and supply chain occurs in countries other than the United States. We also have sales outside the United States. In addition, a significant number of our products are manufactured in Malaysia. Similarly, one of the suppliers of recording heads for our products is located in China. Because of these operations, we are subject to a number of risks including:

We rely on indirect sales channels to market and sell our branded products. Therefore, the loss of or deterioration in our relationship with one or more of our resellers or distributors could negatively affect our operating results.

We sell the majority of our branded products to value-added resellers, or VARs, and to direct marketing resellers such as CDW Corporation, who in turn sell our products to end users, and to distributors such as Ingram Micro, Tech Data and others. We also have a growing relationship with EMC through which we make available our branded products that complement EMC’s product offerings. The success of these sales channels is hard to predict, particularly over time, and we

have no purchase commitments or long-term orders from them that assure us of any baseline sales through these channels. Several of our resellers carry competing product lines that they may promote over our products. A reseller might not continue to purchase our products or market them effectively, and each reseller determines the type and amount of our products that it will purchase from us and the pricing of the products that it sells to end user customers. Certain of our contracts with our distributors contain “most favored nation” pricing provisions mandating that we offer our products to these customers at the lowest price offered to other similarly situated customers. In addition, sales of our enterprise-class libraries, and the revenue associated with the on-site service of those libraries, are somewhat concentrated in specific customers, including government agencies and government-related companies. Our operating results could be adversely affected by any number of factors including:

Our quarterly operating results could fluctuate significantly, and past quarterly operating results should not be used to predict future performance.

Our quarterly operating results have fluctuated significantly in the past and could fluctuate significantly in the future. As a result, our past quarterly operating results should not be used to predict future performance. Quarterly operating results could be materially and adversely affected by a number of factors, including, but not limited to:

If we fail to meet our projected quarterly results, our business, financial condition, and results of operations may be materially and adversely harmed.

If we do not successfully manage the changes that we have made and may continue to make to our infrastructure and management, our business could be disrupted, and that could adversely impact our results of operations and financial condition.

Managing change is an important focus for us. Following the acquisitions of Certance and ADIC, one of our important initiatives involves combining and integrating the information technology infrastructures of the companies, including our enterprise resource planning systems, and adapting our business processes and software to the requirements of the new organization. We are also managing several significant initiatives involving our operations, including efforts to reduce the number of contract manufacturers and suppliers we use, the outsourcing of our repair capabilities and the closure or sale of related facilities. In addition, we continue to reduce headcount to streamline and consolidate our supporting functions as appropriate following past acquisitions and in response to market or competitive conditions. If we are unable to successfully manage the changes that we implement, and detect and address issues as they arise, it could disrupt our business and adversely impact our results of operations and financial condition.

If we fail to protect our intellectual property or if others use our proprietary technology without authorization, our competitive position may suffer.

Our future success and ability to compete depends in part on our proprietary technology. We rely on a combination of copyright, patent, trademark, and trade secrets laws and nondisclosure agreements to establish and protect our proprietary technology. We currently hold 449 United States patents and have 151 United States patent applications pending. However, we cannot provide assurance that patents will be issued with respect to pending or future patent applications that we have filed or plan to file or that our patents will be upheld as valid or will prevent the development of competitive products or that any actions we have taken will adequately protect our intellectual property rights. We generally enter into confidentiality agreements with our employees, consultants, customers, potential customers, and others as required, in which we strictly

limit access to, and distribution of, our software, and further limit the disclosure and use of our proprietary information. Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy or otherwise obtain or use our products or technology. Our competitors may also independently develop technologies that are substantially equivalent or superior to our technology. In addition, the laws of some foreign countries do not protect our proprietary rights to the same extent as the laws of the United States.

Because we may order components from suppliers in advance of receipt of customer orders for our products which include these components, we could face a material inventory risk.

Managing our manufacturing capabilities presents a number of risks that could materially and adversely affect our financial condition. For instance, as part of our component planning, we place orders with or pay certain suppliers for components in advance of receipt of customer orders. We occasionally enter into negotiated orders with vendors early in the manufacturing process of our storage products to ensure that we have sufficient components for our new products to meet anticipated customer demand. Because the design and manufacturing process for these components is complicated, it is possible that we could experience a design or manufacturing flaw that could delay or even prevent the production of the components for which we previously committed to pay. We also face the risk of ordering too many components, or conversely, not enough components, since supply orders are generally based on forecasts of customer orders rather than actual customer orders. In addition, in some cases, we make non-cancelable order commitments to our suppliers for work-in-progress, supplier’s finished goods, custom sub-assemblies, discontinued (end-of-life) components and Quantum-unique raw materials that are necessary to meet our lead times for finished goods. If we cannot change or be released from supply orders, we could incur costs from the purchase of unusable components, either due to a delay in the production of the components or other supplies or as a result of inaccurately predicting supply orders in advance of customer orders. Our business and operating results could be materially and adversely affected as a result of these increased costs.

Some of our manufacturing, and our service repair, is outsourced to third party contract manufacturers. If we cannot obtain our products and parts from these third parties in a cost effective and timely manner that meets our customers’ expectations, this could materially and adversely impact our business, financial condition, and results of operations.

Some of our tape drive and tape automation products are manufactured for us by contract manufactures. We face a number of risks as a result of this outsourced manufacturing, including, among others:

In each case, our contract manufacturer is our sole source of supply for the tape drive and/or tape automation products they manufacture for us. Because we are relying on one supplier, we are at greater risk of experiencing component shortages or other delays in customer deliveries that could result in customer dissatisfaction and lost sales, which could materially damage customer relationships and result in lost revenue.

We may not be able to control the costs we would be required to pay our contract manufacturers for the products they manufacture for us. They procure inventory to build our products based upon a forecast of customer demand that we provide. We would be responsible for the financial impact on the contract manufacturer of any reduction or product mix shift in the forecast relative to materials that they had already purchased under a prior forecast. Such a variance in forecasted demand could require us to pay them for finished goods in excess of current customer demand or for excess or obsolete inventory and generally incur higher costs. As a result, we could experience reduced gross margins and larger operating losses based on these purchase commitments.

We will have limited control over the quality of products produced by our contract manufacturers. Therefore, the quality of the products may not be acceptable to our customers and could result in customer dissatisfaction, lost revenue, and increased warranty costs.

We do not control licensee pricing or licensee sales of tape media cartridges. To the extent that our royalty revenue is dependent on the prices of cartridges sold by our licensees, should these licensees significantly lower prices on the media products that they sell, such reduced pricing would lower our royalty revenue, which would materially and adversely affect our business, financial condition, and operating results.

We receive a royalty fee based on sales of our tape media cartridges by Fuji, Maxell, Imation and Sony. Under our license agreements with these companies, each of the licensees determines the pricing and number of units of tape media cartridges that it sells. To the extent that our royalty revenue is based on the prices of cartridges sold by our licensees, our royalty

revenue will vary depending on the level of sales and prices set by the licensees. In addition, lower prices set by licensees could require us to lower our prices on direct sales of tape media cartridges, which would reduce our revenue and margins on these products. As a result, lower prices on our tape media cartridges would reduce media revenue, which could materially and adversely affect our business, financial condition, and operating results.

Decreased effectiveness of equity compensation could adversely affect our ability to attract and retain employees, and recent changes in accounting for equity compensation are adversely affecting earnings.

Financial Accounting Standards Board (“FASB”) issued SFAS No. 123 (revised 2004) Share-Based Payment (“SFAS No. 123R”), which we implemented at the beginning of fiscal 2007. We are required to recognize compensation expense in our statement of operations for the fair value of unvested employee stock options at the date of adoption and new stock options granted to our employees after the adoption date over the related vesting periods of the stock options. The requirement to expense stock options granted to employees reduces their attractiveness to Quantum because the fair value associated with these grants typically results in future compensation charges. In addition, the expenses recorded may not accurately reflect the value of our stock options because the option pricing models used to estimate fair value were not developed for use in valuing employee stock options and are based on highly subjective assumptions, including the option’s expected life and the price volatility of the underlying stock. Alternative compensation arrangements that can replace stock option programs may also negatively impact profitability. Stock options remain an important employee recruitment and retention tool, and we may not be able to attract and retain key personnel if we reduce the scope of our employee stock option program following the adoption of SFAS No. 123R. Our employees are critical to our ability to develop and design systems that advance our productivity and technology goals, increase our sales goals and provide support to customers. Accordingly, as a result of the requirement under SFAS No. 123R to recognize the fair value of stock options as compensation expense, beginning in the first quarter of fiscal 2007, our future results of operations will be adversely impacted. See also Note 4 “Stock Incentive Plans and Share-based Compensation” to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on June 13, 2007.

Our stock price could become more volatile if certain institutional investors were to increase or decrease the number of shares they own. In addition, there are other factors and events that could affect the trading prices of our common stock.

Five institutional investors owned approximately 48% of our common stock as of March 31, 2007. If any or all of these investors were to decide to purchase additional shares or to sell some or all of the common shares they currently own, that may cause our stock price to be more volatile. For example, there have been instances in the past where a shareholder with a significant equity position begins selling shares, putting downward pressure on our stock price for the duration of their selling activity. In these situations, selling pressure outweighs buying demand and our stock price declined.

Trading prices of our common stock may fluctuate in response to a number of other events and factors, such as:

Any of these events and factors may cause our stock price to rise or fall and may adversely affect our business and financing opportunities.

Some of our production processes and materials are environmentally sensitive, and new environmental regulation could lead to increased costs, or otherwise adversely affect our business, financial condition, and results of operations.

We are subject to a variety of laws and regulations relating to, among other things, the use, storage, discharge and disposal of chemicals, gases and other hazardous substances used in our manufacturing processes, air emissions, waste discharges, waste disposal, the investigation and remediation of soil and ground water contamination, as well as requirements for the design of and materials used in our products. A recent directive in the European Union imposes a “take back” obligation on manufacturers for the financing of the collection, recovery and disposal of electrical and electronic equipment. Additional European legislation has banned the use of some heavy metals including lead and some flame retardants in electronic components since July 2006. We have implemented procedures to comply with this new legislation. However, this legislation

may adversely affect our manufacturing costs or product sales by requiring us to acquire costly equipment or materials, or to incur other significant expenses in adapting our manufacturing processes or waste and emission disposal processes. Furthermore, environmental claims or our failure to comply with present or future regulations could result in the assessment of damages or imposition of fines against us, or the suspension of affected operations, which could have an adverse effect on our business, financial condition, and results of operations.

We may be sued by our customers as a result of failures in our data storage products.

We face potential liability for performance problems of our products because our end users employ our storage technologies for the storage and backup of important data and to satisfy regulatory requirements. Although we maintain technology errors and omissions insurance, our insurance may not cover potential claims of this type or may not be adequate to indemnify us for all liability that may be imposed. Any imposition of liability that is not covered by insurance or is in excess of our insurance coverage could harm our business.

In addition, we could potentially face claims for product liability from our customers if our products cause property damage or bodily injury. Although we maintain general liability insurance, our insurance may not cover potential claims of this type or may not be adequate to indemnify us for all liability that may be imposed. Any imposition of liability that is not covered by insurance or is in excess of our insurance coverage could harm our business.

We must maintain appropriate levels of service inventories. If we have too little service inventory, we may experience increased levels of customer dissatisfaction. If we have too much service inventory, we may incur financial losses.

We maintain levels of service inventories to satisfy future warranty obligations and also to earn service revenue to repair products for which the warranty has expired. We estimate the required amount of service inventories based on historical usage and forecasts of future warranty requirements, including estimates of failure rates and costs to repair, and out of warranty revenue. Given the significant levels of judgment inherently involved in the process, we cannot provide assurance that we will be able to maintain appropriate levels of service inventories to satisfy customer needs and to avoid financial losses from excess inventory charges. If we are unable to maintain appropriate levels of service inventories, our business, financial condition, and results of operations may be materially and adversely impacted.

Because we rely heavily on distributors and other resellers to market and sell our products, if one or more distributors were to experience a significant deterioration in its financial condition or its relationship with us, this could disrupt the distribution of our products and reduce our revenue, which could materially and adversely affect our business, financial condition, and operating results.

In certain product and geographic segments we heavily utilize distributors and value added resellers to perform the functions necessary to market and sell our products. To fulfill this role, the distributor must maintain an acceptable level of financial stability, creditworthiness and the ability to successfully manage business relationships with the customers it serves directly. Under our distributor agreements with these companies, each of the distributors determines the type and amount of our products that it will purchase from us and the pricing of the products that it sells to its customers. If the distributor is unable to perform in an acceptable manner, we may be required to reduce the amount of sales of our product to the distributor or terminate the relationship. We may also incur financial losses for product returns from distributors or for the failure or refusal of distributors to pay obligations owed to us. Either scenario could result in fewer of our products being available to the affected market segments, reduced levels of customer satisfaction and/or increased expenses, which could in turn have a material and adverse impact on our business, results of operations, and financial condition.

If the future outcomes related to the estimates used in recording tax liabilities to various taxing authorities result in higher tax liabilities than estimated, then we would have to record tax charges, which could be material.

We have provided amounts and recorded liabilities for probable and estimable tax adjustments that may be proposed by various taxing authorities in the U.S. and foreign jurisdictions. If events occur that indicate payments of these amounts will be less than estimated, then reversals of these liabilities would create tax benefits being recognized in the periods when we determine the liabilities have reduced. Conversely, if events occur which indicate that payments of these amounts will be greater than estimated, then tax charges and additional liabilities would be recorded. In particular, various foreign jurisdictions could challenge the characterization or transfer pricing of certain intercompany transactions. In the event of an unfavorable outcome of such challenge, there exists the possibility of a material tax charge and adverse impact on the results of operations in the period in which the matter is resolved or an unfavorable outcome becomes probable and estimable.

Maxtor’s failure to perform under its agreements with Quantum could harm our business, financial condition, and operating results.

We may have contingent liabilities for some obligations assumed by Maxtor in connection with the disposition of the Hard Disk Drive group, including liabilities for taxes, real estate and litigation, and Maxtor’s failure to perform under these obligations could result in significant costs to us that could have a materially adverse impact on our business, financial condition, and operating results. In May 2006, Maxtor was acquired by Seagate, which assumed Maxtor’s defense and indemnification obligations.

The disposition of the Hard Disk Drive group may be determined not to be tax-free, which would result in us or our stockholders, or both, incurring a substantial tax liability, which could materially and adversely affect our business, financial condition, and results of operations.

Maxtor and Quantum have agreed not to request a ruling from the Internal Revenue Service, or any state tax authority confirming that the structure of the combination of Maxtor with the Hard Disk Drive group will not result in any federal income tax or state income or franchise tax to Quantum or the previous holders of the Hard Disk Drive common stock. Instead, Maxtor and Quantum have agreed to effect the disposition and the merger on the basis of an opinion from our tax advisor, and a tax opinion insurance policy issued by a syndicate of major insurance companies to us covering up to $340 million of tax loss caused by the disposition and merger.

If the disposition of the Hard Disk Drive group is determined not to be tax-free and the tax opinion insurance policy does not fully cover the resulting tax liability, we or our stockholders or both could incur substantial tax liability, which could materially and adversely affect our business, financial condition, and results of operations. In May 2006, Maxtor was acquired by Seagate, which assumed Maxtor’s defense and indemnification obligations.

The tax opinion insurance policy issued in conjunction with the disposition of the Hard Disk Drive group does not cover all circumstances under which the disposition could become taxable to us, and as a result, we could incur an uninsured tax liability, which could materially and adversely affect our business, financial condition, and results of operations.

In addition to customary exclusions from its coverage, the tax opinion insurance policy does not cover any federal or state tax payable by us if the disposition becomes taxable to us as a result of a change in relevant tax law. We could incur uninsured tax liability, which could materially and adversely affect our business, financial condition, and results of operations.

If we incur an uninsured tax liability as a result of the disposition of the Hard Disk Drive group, our financial condition and operating results could be negatively affected.

If the disposition of the Hard Disk Drive group were determined to be taxable to Quantum, we would not be able to recover an amount to cover the tax liability either from Maxtor or under the insurance policy in the following circumstances:

In any of these circumstances, the tax payments due from us could be substantial. In order to pay the tax, we would have to either deplete our existing cash resources or borrow cash to cover our tax obligation. Our payment of a significant tax prior to payment from Maxtor under Maxtor’s indemnification obligations, or in circumstances where Maxtor has no payment obligation, could harm our business, financial condition, and operating results. In May 2006, Maxtor was acquired by Seagate, which assumed Maxtor’s defense and indemnification obligations.

We are exposed to fluctuations in foreign currency exchange rates, and an adverse change in foreign currency exchange rates relative to our position in such currencies could have a materially adverse impact on our business, financial condition, and results of operations.

We do not use derivative financial instruments for hedge or speculative purposes. To minimize foreign currency exposure, we use foreign currency obligations to match and offset net currency exposures associated with certain assets and liabilities denominated in non-functional currencies. Corresponding gains and losses on the underlying transaction generally offset the gains and losses on these foreign currency obligations. We have used in the past, and may use in the future, foreign currency forward contracts to hedge our exposure to foreign currency exchange rates. To the extent that we have assets or liabilities denominated in a foreign currency that are inadequately hedged or not hedged at all, we may be subject to foreign currency losses, which could be significant.

Our international operations can act as a natural hedge when both operating expenses and sales are denominated in local currencies. In these instances, although an unfavorable change in the exchange rate of a foreign currency against the U.S. dollar would result in lower sales when translated to U.S. dollars, operating expenses would also be lower in these circumstances. Also, since an insignificant amount of our current sales are denominated in currencies other than the U.S. dollar, we do not believe that our total foreign exchange rate exposure is significant. Nevertheless, an increase in the rate at which a foreign currency is exchanged for U.S. dollars would require more of that particular foreign currency to equal a specified amount of U.S. dollars than before such rate increase. In such cases, and if we were to price our products and services in that particular foreign currency, we would receive fewer U.S. dollars than we would have received prior to such rate increase for the foreign currency. Likewise, if we were to price our products and services in U.S. dollars while competitors priced their products in a local currency, an increase in the relative strength of the U.S. dollar would result in our prices being uncompetitive in those markets. Such fluctuations in currency exchange rates could materially and adversely affect our business, financial condition, and results of operations.

In prior year periods, we violated certain financial covenants under our credit agreement and received waivers or amendments for such violations. If in the future we violate financial covenants, it could materially and adversely impact our financial condition and liquidity.

If our operating results do not improve in the future and we violate any financial or reporting covenant in our credit agreement and receive a notice of default letter from our bank group, our credit line could become unavailable, and any amounts outstanding could become immediately due and payable.

Without the availability of the credit facility, we would have to rely on operating cash flows and debt or equity arrangements other than the credit facility, if such alternative funding arrangements are available to us at all, in order to maintain sufficient liquidity. If we were not able to obtain sufficient cash from our operations or from these alternative funding sources under such circumstances, our operations, financial condition and liquidity would be materially and adversely affected.

The Exhibit Index beginning on page 44 of this report sets forth a list of exhibits.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

QUANTUM CORPORATION

/s/ JON W. GACEK

Jon W. Gacek

Executive Vice President and

Chief Financial Officer


		Page Number
PART I—FINANCIAL INFORMATION

Item 1.	Financial Statements:

	Condensed Consolidated Statements of Operations	1

	Condensed Consolidated Balance Sheets	2

	Condensed Consolidated Statements of Cash Flows	3

	Notes to Condensed Consolidated Financial Statements	4

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17

Item 3.	Quantitative and Qualitative Disclosures About Market Risk	30

Item 4.	Controls and Procedures	31

PART II—OTHER INFORMATION

Item 1.	Legal Proceedings	32

Item 1A.	Risk Factors	32

Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	42

Item 3.	Defaults Upon Senior Securities	42

Item 4.	Submission of Matters to a Vote of Security Holders	42

Item 5.	Other Information	42

Item 6.	Exhibits	42

SIGNATURE		43

EXHIBIT INDEX		44


	Three Months Ended
	June 30, 2007			June 30, 2006
Product revenue	$	181,631		$	140,795
Service revenue		40,104			18,249
Royalty revenue		24,033			27,551

Total revenue		245,768			186,595

Cost of product revenue		137,143			119,962
Cost of service revenue		30,331			14,608
Restructuring charges related to cost of revenue		237			—

Total cost of revenue		167,711			134,570
Gross margin		78,057			52,025
Operating expenses:
Research and development		26,358			22,328
Sales and marketing		35,356			20,118
General and administrative		21,517			12,858
Restructuring charges		9,114			83

		92,345			55,387

Loss from operations		(14,288	)		(3,362	)
Interest income and other, net		4,357			1,963
Interest expense		(13,634	)		(2,162	)

Loss before income taxes		(23,565	)		(3,561	)
Income tax provision (benefit)		(980	)		15

Net loss	$	(22,585	)	$	(3,576	)

Basic and diluted net loss per share	$	(0.11	)	$	(0.02	)
Basic and diluted weighted-average common and common equivalent shares		198,289			188,198


	June 30, 2007 (Unaudited)			March 31, 2007(1)
Assets
Current assets:
Cash and cash equivalents	$	79,937		$	60,581
Marketable securities		10,000			35,000
Accounts receivable, net of allowance for doubtful accounts of $6,754 and $6,431, respectively		175,232			149,435
Inventories		76,316			91,153
Deferred income taxes		14,679			17,137
Assets held for sale, net		8,194			—
Other current assets		38,312			33,155

Total current assets		402,670			386,461

Long-term assets:
Property and equipment, less accumulated depreciation		39,359			50,241
Service parts for maintenance, less accumulated amortization		79,503			82,361
Purchased technology, less accumulated amortization		97,810			106,524
Other intangible assets, less accumulated amortization		87,829			92,077
Goodwill		389,530			390,032
Other long-term assets		13,706			18,133

Total long-term assets		707,737			739,368

	$	1,110,407		$	1,125,829

Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	77,146		$	92,292
Accrued warranty		26,807			30,669
Deferred revenue, current		57,241			57,617
Current portion of long-term debt		25,000			25,000
Accrued restructuring charges		14,763			13,289
Other accrued liabilities		94,060			110,583

Total current liabilities		295,017			329,450

Long-term liabilities:
Deferred revenue, long-term		27,551			27,634
Deferred income taxes		14,310			16,751
Long-term debt		361,250			337,500
Convertible subordinated debt		160,000			160,000
Other long-term liabilities		13,875			53

Total long-term liabilities		576,986			541,938

Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value; 1,000,000 shares authorized; 199,346 and 197,817 shares issued and outstanding at June 30, 2007 and March 31, 2007, respectively		313,915			308,387
Accumulated deficit		(81,850	)		(60,472	)
Accumulated other comprehensive income		6,339			6,526

Stockholders’ equity		238,404			254,441

	$	1,110,407		$	1,125,829


	Three Months Ended
	June 30, 2007			June 30, 2006
Cash flows from operating activities:
Net loss	$	(22,585	)	$	(3,576	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		9,667			4,569
Amortization		17,575			5,796
Realized gain on sale of securities		(2,122	)		—
Gain on Ireland facility closure		—			(476	)
Deferred income taxes		17			(37	)
Share-based compensation		2,850			1,778
Fixed assets written off in restructuring		360			—
Changes in assets and liabilities, net of effects from acquisition and assets held for sale:
Accounts receivable		(25,797	)		(4,938	)
Inventories		7,919			1,312
Service parts for maintenance		(1,058	)		(6,212	)
Accounts payable		(6,839	)		2,038
Accrued warranty		(3,862	)		(2,180	)
Deferred revenue		(459	)		(256	)
Accrued restructuring charges		1,976			(7,103	)
Other assets and liabilities		1,165			(2,958	)

Net cash used in operating activities		(21,193	)		(12,243	)

Cash flows from investing activities:
Purchases of marketable securities		(65,000	)		(287,473	)
Proceeds from sale of marketable securities		90,000			246,275
Purchases of property and equipment		(4,746	)		(5,169	)
Proceeds from sale of Ireland facility		—			6,000

Net cash provided by (used in) investing activities		20,254			(40,367	)

Cash flows from financing activities:
Borrowings of long-term debt		50,000			—
Repayments of long-term debt		(26,250	)		—
Proceeds from issuance of common stock, net		2,678			297

Net cash provided by financing activities		26,428			297

Net increase (decrease) in cash and cash equivalents		25,489			(52,313	)
Cash and cash equivalents at beginning of period		60,581			123,298

Cash and cash equivalents at end of period	$	86,070		$	70,985

Reconciliation of cash and cash equivalents at end of period:
Cash and cash equivalents included in assets held for sale	$	6,133		$	—
Cash and cash equivalents		79,937			70,985

Cash and cash equivalents at end of period	$	86,070		$	70,985

Supplemental disclosure of cash flow information:
Cash paid during the period for:
Interest	$	10,627		$	150
Income taxes, net of refunds	$	(2,074	)	$	634
Value of common stock tendered in satisfaction of employees’ income taxes on vesting of employee share-based awards	$	129		$	5


	Three Months Ended
	June 30, 2007		June 30, 2006
Share-based compensation:
Cost of revenue	$	366	$	251
Research and development		859		477
Sales and marketing		583		340
General and administrative		1,042		710

	$	2,850	$	1,778

Share-based compensation (by type of award):
Stock options	$	1,370	$	1,204
Stock purchase plan		408		359
Restricted stock		1,072		215

	$	2,850	$	1,778


	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding as of March 31, 2007	36,259		$	3.62
Granted	3,878			3.13
Exercised	(1,536	)		1.83
Expired	(213	)		9.73
Forfeited	(1,714	)		4.71

Outstanding as of June 30, 2007	36,674			3.55	4.68	$	22,862

Vested and expected to vest at June 30, 2007	33,055			3.68	4.56		19,907

Exercisable as of June 30, 2007	21,390			4.40	3.91		10,499


	Shares		Weighted- Average Grant Date Fair Value
Nonvested at March 31, 2007	3,714		$	1.69
Granted	2,802			3.01
Vested	(129	)		2.77
Forfeited	(52	)		2.79

Nonvested at June 30, 2007	6,335			2.24


Acquisition of 63.4 million shares of outstanding common stock of ADIC at $12.25 per share:
In cash (62.9 million shares)	$	770,612
In exchange for Quantum stock (0.5 million ADIC shares converted to 1.9 million Quantum shares)		4,070
Fair value of ADIC stock options assumed		10,471
Acquisition related transaction costs		7,791

Total purchase price	$	792,944


Current assets	$	390,262
Property and equipment		29,758
Service parts for maintenance		16,067
Long-term assets		2,349
Intangible assets		190,278
Goodwill		342,352
Current liabilities *		(154,937	)
Long-term liabilities		(37,885	)
In-process research and development		14,700

Total purchase price	$	792,944


	Fair Value		Amortization (Years)
Purchased technology	$	92,493	4.7
Customer lists		92,600	7.1
Trademarks		4,700	5.8
Non-compete agreements		485	5.0

Total intangible assets acquired	$	190,278	5.9


	June 30, 2007		March 31, 2007
Raw materials and purchased parts	$	28,554	$	45,011
Work in process		3,657		7,234
Finished goods		44,105		38,908

	$	76,316	$	91,153


	As of June 30, 2007							As of March 31, 2007
	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Purchased technology	$	189,119	$	(91,309	)	$	97,810	$	189,119	$	(82,595	)	$	106,524
Trademarks		27,260		(20,119	)		7,141		27,260		(19,221	)		8,039
Non-compete agreements		2,000		(1,593	)		407		2,000		(1,568	)		432
Customer lists		108,272		(27,991	)		80,281		108,272		(24,666	)		83,606

	$	326,651	$	(141,012	)	$	185,639	$	326,651	$	(128,050	)	$	198,601


	Amortization
Nine months ending March 31, 2008	$	35,983
Fiscal 2009		41,076
Fiscal 2010		36,785
Fiscal 2011		28,815
Fiscal 2012 and thereafter		42,980

Total as of June 30, 2007	$	185,639


	For the three months ended June 30, 2007
	Severance and Benefits			Facilities			Fixed Assets			Other			Total
Balance as of March 31, 2007	$	10,747		$	792		$	—		$	1,750		$	13,289
Restructuring costs		8,267			899			360			551			10,077
Reversals		(1,228	)		—			—			—			(1,228	)
Cash payments		(5,557	)		(186	)		—			(518	)		(6,261	)
Non-cash charges		58			—			(360	)		(812	)		(1,114	)

Balance as of June 30, 2007	$	12,287		$	1,505		$	—		$	971		$	14,763


	Severance and Benefits		Facilities		Other		Total
Estimated timing of future payouts:
Fiscal 2008	$	12,287	$	730	$	971	$	13,988
Fiscal 2009 to 2013		—		775		—		775

	$	12,287	$	1,505	$	971	$	14,763


	Amount
	(In thousands)
Cash and cash equivalents	$	6,133
Inventories		6,916
Property and equipment, net		5,126
Other assets		424
Accounts payable		(8,307	)
Other accrued liabilities		(2,098	)

Assets held for sale, net	$	8,194


	Three Months Ended
	June 30, 2007			% of revenue		June 30, 2006			% of revenue		Change			% Change
Product revenue	$	181,631		73.9	%	$	140,795		75.5	%	$	40,836		29.0	%
Service revenue		40,104		16.3	%		18,249		9.8	%		21,855		119.8	%
Royalty revenue		24,033		9.8	%		27,551		14.8	%		(3,518	)	(12.8	)%

Total revenue		245,768		100.0	%		186,595		100.0	%		59,173		31.7	%
Cost of product revenue		137,143		55.8	%		119,962		64.3	%		17,181		14.3	%
Cost of service revenue		30,331		12.3	%		14,608		7.8	%		15,723		107.6	%
Restructuring costs related to cost of revenue		237		0.1	%		—		—			237		100.0	%

Total cost of revenue		167,711		68.2	%		134,570		72.1	%		33,141		24.6	%
Gross margin		78,057					52,025					26,032		50.0	%
Gross margin rate		31.8	%				27.9	%
Product gross margin rate		24.5	%				14.8	%
Service gross margin rate		24.4	%				20.0	%

Operating expenses:
Research and development		26,358		10.7	%		22,328		12.0	%		4,030		18.0	%
Sales and marketing		35,356		14.4	%		20,118		10.8	%		15,238		75.7	%
General and administrative		21,517		8.8	%		12,858		6.9	%		8,659		67.3	%
Restructuring charges		9,114		3.7	%		83		0.0	%		9,031		NM

		92,345		37.6	%		55,387		29.7	%		36,958		66.7	%

Loss from operations		(14,288	)	(5.8	)%		(3,362	)	(1.8	)%		(10,926	)	325.0	%
Interest income and other, net		4,357		1.8	%		1,963		1.1	%		2,394		122.0	%
Interest expense		(13,634	)	(5.5	)%		(2,162	)	(1.2	)%		(11,472	)	530.6	%

Loss before income taxes		(23,565	)	(9.6	)%		(3,561	)	(1.9	)%		(20,004	)	561.8	%
Income tax provision (benefit)		(980	)	(0.4	)%		15		0.0	%		995		NM

Net loss	$	(22,585	)	(9.2	)%	$	(3,576	)	(1.9	)%	$	(19,009	)	531.6	%


	As of or for the Three Months Ended
(In thousands, except DSO and Inventory turns)	June 30, 2007			June 30, 2006
Cash and cash equivalents	$	79,937		$	70,985
Marketable securities		10,000			141,173

Total cash, cash equivalents and marketable securities	$	89,937			212,158
Days sales outstanding (“DSO”)		60.1			58.0
Inventory turns (Annualized)		8.0			6.1
Net cash used in operating activities	$	(21,193	)	$	(12,243	)
Net cash provided by (used in) investing activities	$	20,254		$	(40,367	)
Net cash provided by financing activities	$	26,428		$	297


		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	File No.	Exhibit(s)	Filing Date
2.1	Agreement and Plan of Merger by and among Quantum Corporation, Agate Acquisition Corporation and Advanced Digital Information Corporation, dated as of May 2, 2006.	8-K	001-13449	2.1	May 5, 2006

3.1	Amended and Restated Certificate of Incorporation of Registrant.	10-K	001-13449	3.1	June 29, 2001

3.2	Certificate of Correction to the Amended and Restated Certificate of Incorporation of Registrant	10-Q	001-13449	3.2	November 5, 2005

3.3	Amended and Restated By-laws of Registrant, as amended.	10-K	001-13449	3.2	June 28, 2000

3.4	Certificate of Amendment of Amended and Restated By-laws of Registrant, effective July 12, 2007	8-K	001-13449	3.1	July 18, 2007

3.5	Certificate of Designation of Rights, Preferences and Privileges of Series B Junior Participating Preferred Stock.	S-3	333-109587	4.7	October 9, 2003

4.1	Amended and Restated Preferred Shares Rights Agreement between the Registrant and Harris Trust and Savings Bank.	S-4/A	333-75153	4.1	June 10, 1999

4.2	First Amendment to the Amended and Restated Preferred Shares Rights Agreement and Certification Of Compliance With Section 27 Thereof, dated as of October 28, 2002.	10-Q	001-13449	4.1	November 13, 2002

4.3	Stockholder Agreement, dated as of October 28, 2002, by and between Registrant and Private Capital Management.	10-Q	001-13449	4.2	November 13, 2002

4.4	Second Amendment to the Amended and Restated Preferred Shares Rights Plan, dated November 1, 2006.	8-K	001-13449	4.1	November 6, 2006

10.1	Indenture, dated as of July 30, 2003, between Registrant and U.S. Bank National Association, related to the Registrant’s convertible debt securities.	S-3	333-109587	4.1	October 9, 2003

10.2	Chief Executive Officer Change of Control Agreement, dated April 1, 2007, between Registrant and Richard E. Belluzzo.	8-K	001-13449	10.1	April 4, 2007

10.3	Form of Officer Change of Control Agreement, dated April 1, 2007, between Registrant and each of Registrant’s Executive Officers (other than the Chief Executive Officer).	8-K	001-13449	10.2	April 4, 1007

10.4	Form of Director Change of Control Agreement, dated April 1, 2007, between Registrant and each Director of Registrant (other than the Chairman and CEO).	8-K	001-13449	10.3	April 4, 2007