SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant [x]
Filed by a Party other than the Registrant [_]

Check the appropriate box:
[_]  Preliminary Proxy Statement                  [_] Soliciting Material Under Rule
[_]  Confidential, For Use of the                        14a-12
       Commission Only (as permitted
       by Rule 14a-6(e)(2))
[_]  Definitive Proxy Statement
[x]  Definitive Additional Materials

QUANTUM CORPORATION
------------------------------------------------------------------------------------------------------------------------------------------------------

(Name of Registrant as Specified In Its Charter)

------------------------------------------------------------------------------------------------------------------------------------------------------

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[x]  No fee required.
[_] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

1)  Title of each class of securities to which transaction applies:
____________________________________________________________________________________
2)  Aggregate number of securities to which transaction applies:
3)  Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the
     amount on which the filing fee is
calculated and state how it was determined):
4)  Proposed maximum aggregate value of transaction:
____________________________________________________________________________________
5)  Total fee paid:
[_] Fee paid previously with preliminary materials:
[_] Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which
      the offsetting fee was paid
previously. Identify the previous filing by registration statement number, or the form or
      schedule and the date of its filing.

____________________________________________________________________________________
      1) Amount previously paid:
____________________________________________________________________________________
      2) Form, Schedule or Registration Statement No.:
____________________________________________________________________________________
      3) Filing Party:
____________________________________________________________________________________
      4) Date Filed:


*** Exercise Your Right to Vote ***

IMPORTANT NOTICE Regarding the Availability of Proxy Materials 

 

 

Meeting Information 
QUANTUM CORPORATION  Meeting Type: Annual 
 For holders as of: 06/22/09   
 Date: 08/19/09  Time: 8:00 A.M., PDT 
 Location:

Corporate Headquarters
1650 Technology Drive
San Jose, CA 95110

    
     

QUANTUM CORPORATION
1650 TECHNOLOGY DRIVE
SUITE 800
SAN JOSE, CA 95110

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

 


Before You Vote
How to Access the Proxy Materials

 

Proxy Materials Available to VIEW or RECEIVE:

NOTICE AND PROXY STATEMENT           ANNUAL REPORT           FORM 10-K COMBO

How to View Online:
Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com.

How to Request and Receive a PAPER or E-MAIL Copy:
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:

  1) BY INTERNET:   www.proxyvote.com 
  2) BY TELEPHONE:  1-800-579-1639 
  3) BY E-MAIL*:  sendmaterial@proxyvote.com 
       

*  If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the following page) in the subject line.

   

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. To facilitate timely delivery, please make the request as instructed above on or before 08/05/09.

How To Vote
Please Choose One of the Following Voting Methods

Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the 12-Digit Control Number available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.




Voting Items    

THE DIRECTORS RECOMMEND A VOTE "FOR" ITEMS 1, 2 AND 3.

   
1.      

Proposal to elect 01) Paul R. Auvil III, 02) Richard E. Belluzzo, 03) Michael A. Brown, 04) Thomas S. Buchsbaum, 05) Edward M. Esber, Jr., 06) Elizabeth A. Fetter, 07) Joseph A. Marengi, 08) Bruce A. Pasternack and 09) Dennis P. Wolf to the Board of Directors.


2.      

Proposal to ratify the appointment of PricewaterhouseCoopers LLP as the independent registered public accounting firm of the Company for the fiscal year ending March 31, 2010.

 
3.

Provided that the Company has not effected a reverse stock split before August 19, 2009, proposal to reauthorize the Company’s Board of Directors to select and file one of several possible amendments to the Company’s amended and restated certificate of incorporation which would effect a reverse stock split, pursuant to which any whole number of outstanding shares of the Company’s Common Stock between and including three and twelve would be combined into one share of such stock.

 
4. Proposal to transact such other business as may properly come before the meeting or any adjournment or postponement thereof.