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 ^*

HALL SHAWN D

2. Date of Event Requiring Statement (Month/Day/Year)
09/01/2003

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)
Vice Pres. Gen. Counsel Sec.

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)
Common Stock⁽²⁾	834	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)
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 D16041	09/01/1999⁽¹⁾	08/31/2009	DSS Common⁽⁵⁾	733	$18.31	D
Option H16041	09/01/1999⁽¹⁾	08/31/2009	DSS Common⁽⁵⁾	225	$7.83	D
Option D17170	01/01/2000⁽⁴⁾	01/11/2010	DSS Common⁽⁵⁾	500	$8.69	D
Option H22542	01/01/2001⁽³⁾	01/11/2010	DSS Common⁽⁵⁾	23	$8.79	D
Option D22542	01/01/2001⁽³⁾	01/11/2010	DSS Common⁽⁵⁾	50	$8.69	D
Option H17224	01/01/2000⁽⁴⁾	01/11/2010	DSS Common⁽⁵⁾	228	$8.79	D
Option D25298	04/01/2000⁽¹⁾	06/21/2010	DSS Common⁽⁵⁾	3,521	$9.56	D
Option H25298	04/01/2000⁽¹⁾	06/21/2010	DSS Common⁽⁵⁾	1,973	$12.49	D
Option D30314	10/01/2003	08/08/1988⁽⁶⁾	DSS Common⁽⁵⁾	2,334	$0.01	D
Option H30314	10/01/2003	08/08/1988⁽⁶⁾	DSS Common⁽⁵⁾	1,062	$0.01	D
Option DN30483	01/01/2001⁽¹⁾	01/30/2011	DSS Common⁽⁵⁾	4,861	$13.28	D
Option D30483	01/01/2001⁽¹⁾	01/30/2011	DSS Common⁽⁵⁾	25,139	$13.28	D
Option D31714	04/01/2001⁽¹⁾	07/31/2011	DSS Common⁽⁵⁾	3,125	$9.7	D
Option DN31714	04/01/2001⁽¹⁾	07/31/2011	DSS Common⁽⁵⁾	21,875	$9.7	D
Option D33340	04/01/2002⁽¹⁾	05/02/2012	DSS Common⁽⁵⁾	33,000	$6.7	D
Option D33377	04/01/2002⁽¹⁾	05/02/2012	DSS Common⁽⁵⁾	16,500	$6.7	D
Option D33544	07/01/2002⁽¹⁾	07/31/2012	DSS Common⁽⁵⁾	40,000	$2.08	D
Option D34934	07/01/2003⁽⁴⁾	07/29/2008	DSS Common⁽⁵⁾	45,000	$2.95	D

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
HALL SHAWN D 1650 TECHNOLOGY DRIVE SUITE 800 SAN JOSE, CA 95110			Vice Pres. Gen. Counsel Sec.

Signatures

Lynne Austin		09/03/2003
^**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)	Equal monthly vesting over 48 months
(2)	Purchase made pursuant to a qualified 16(b) plan
(3)	50% Vested on 1/1/01; 50% vested on 1/1/02
(4)	Equal monthly vesting over 24 months
(5)	Right to buy granted under Rule 16b(3) plan
(6)	No expiration date; shares free from restrictions upon vesting

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