FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Panayides, Andy
 2. Date of Event Requiring Statement (Month/Day/Year)
08/22/2006		 3. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [DSS]
(Last)
(First)
(Middle)
C/O QUANTUM CORPORATION, 1650 TECHNOLOGY DRIVE, SUITE 700		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP,Corp Development & Strategy
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SAN JOSE, CA 95110		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
DSS Common Stock 43,899
D
 
DSS Common Stock (3) 6,966
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option 09/01/2000 09/01/2010 DSS Common Stock 30,000 $ 13.5625 D  
Non-Qualified Stock Option 09/01/2000 09/01/2010 DSS Common Stock 13,656 $ 10.6416 D  
Non-Qualified Stock Option 07/31/2001 07/31/2011 DSS Common Stock 42,427 $ 9.7 D  
Non-Qualified Stock Option 07/31/2001 07/31/2011 DSS Common Stock 3,573 $ 9.7 D  
Non-Qualified Stock Option 05/02/2002 05/02/2012 DSS Common Stock 21,300 $ 6.7 D  
Non-Qualified Stock Option 05/02/2002 05/02/2012 DSS Common Stock 10,650 $ 6.7 D  
Non-Qualified Stock Option 07/31/2002 07/31/2012 DSS Common Stock 40,000 $ 2.08 D  
Non-Qualified Stock Option 07/29/2003 07/29/2008 DSS Common Stock 45,000 $ 2.95 D  
Non-Qualified Stock Option 06/07/2004 07/01/2011 DSS Common Stock 28,000 $ 2.93 D  
Non-Qualified Stock Option 06/28/2005 06/28/2012 DSS Common Stock 20,000 $ 2.92 D  
Restricted Stock Units   (1)   (1) DSS Common Stock 50,000 $ (2) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Panayides, Andy
C/O QUANTUM CORPORATION
1650 TECHNOLOGY DRIVE, SUITE 700
SAN JOSE, CA 95110		       VP,Corp Development & Strategy  

Signatures

/s/ Zoey Armstrong, by Zoey Armstrong, Attorney in Fact for Andy Panayides 09/05/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Restricted Stock Units will vest over a period of two (2) years, as follows: the first 50% will vest on September 1, 2007 and the remaining 50% on September 1, 2008.
(2) Restricted Stock Units convert to shares of Common Stock on a 1-for-1 basis.
(3) Restricted Stock.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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