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Quantum Corporation
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QUANTUM CORPORATION

** IMPORTANT NOTICE **

Regarding the Availability of Proxy Material

You are receiving this communication because you hold shares in the above company, and the material you should review before you cast your vote is now available.

This communication presents only an overview of the more complete proxy material that is available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy material before voting.

             QUANTUM CORPORATION
             C/O BROADRIDGE
             51 MERCEDES WAY
             EDGEWOOD, NY 11717

Stockholder Meeting to be held on 08/19/08

Proxy Material Available

Proxy Statement
10K

	PROXY MATERIAL - VIEW OR RECEIVE
	You can choose to view the material Online or receive a paper or e-mail copy. There is NO charge for requesting a copy. Requests, instructions and other inquiries will NOT be forwarded to your investment advisor. To facilitate timely delivery please make the request as instructed below on or before 08/05/08.

	HOW TO VIEW MATERIAL VIA THE INTERNET
	Have the 12 Digit Control Number(s) available and visit: www.proxyvote.com

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	1) BY INTERNET - www.proxyvote.com 2) BY TELEPHONE - 1-800-579-1639 3) BY E-MAIL* - sendmaterial@proxyvote.com *If requesting material by e-mail, please send a blank e-mail with the 12 Digit Control Number (located on the following page) in the subject line.

See the Reverse Side for Meeting Information and Instructions on How to Vote

	Meeting Information
	Meeting Type:	Annual
	Meeting Date:	08/19/08
	Meeting Time:	8:00 A.M. PDT
	For holders as of:	06/20/08

	Meeting Location:

	Quantum Corporate Headquarters
	1650 Technology Drive
	San Jose, CA 95110

	Meeting Directions:
	For Meeting Directions Please Call:
	408-944-4419

	How To Vote
		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 material 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.
		Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your notice in hand when you access the web site and follow the instructions.

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 authorize 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 four and twelve would be combined into one share of such stock.

3.		To transact such other business as may properly come before the meeting or any adjournment thereof.