Ownership Submission

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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3235-0104

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

CARROZZA ANTHONY

2. Date of Event Requiring Statement (Month/Day/Year)
02/09/2004

3. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [DSS]

(Last)

(First)

(Middle)

1650 TECHNOLOGY DRIVE, SUITE 800

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
VP OEM Sales

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	15,936	D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Option #D31912 ⁽²⁾	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	8,000	$ 10.93	D
Option #D31913	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	2,867	$ 10.93	D
Option #D31914	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	7,133	$ 10.93	D
Option #D31915	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	2,250	$ 10.93	D
Option #D31916	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	1,921	$ 10.93	D
Option #D31917	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	973	$ 10.93	D
Option #D31918	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	695	$ 10.93	D
Option #D31919	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	1,487	$ 10.93	D
Option #D31920	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	1,345	$ 10.93	D
Option #D32323	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	16,045	$ 10.93	D
Option #DN32323	07/01/2001⁽³⁾	01/07/2012	DSS Common Stock ⁽¹⁾	40,955	$ 10.93	D
Option #D33329	04/01/2002⁽³⁾	05/02/2012	DSS Common Stock ⁽¹⁾	21,300	$ 6.7	D
Option #D33366	04/01/2002⁽³⁾	05/02/2012	DSS Common Stock ⁽¹⁾	10,650	$ 6.7	D
Option #D33488	07/01/2002⁽³⁾	07/31/2012	DSS Common Stock ⁽¹⁾	40,000	$ 2.08	D
Option #D34789	07/01/2003⁽³⁾	07/29/2008	DSS Common Stock ⁽¹⁾	100,000	$ 2.95	D

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
CARROZZA ANTHONY 1650 TECHNOLOGY DRIVE, SUITE 800 SAN JOSE, CA 95110			VP OEM Sales

Signatures

Anthony Carrozza		02/19/2004
^**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)	Right to buy granted under Rule 16b(3) plan.
(2)	See previous Form 3 filing for options granted prior to 1/1/2001.
(3)	Equal monthly vesting over 48 months.

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

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.