FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
ROSENTHALER ALBERT E
   2. Issuer Name and Ticker or Trading Symbol
LIBERTY MEDIA CORP [LMDI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
(Last)
(First)
(Middle)
12300 LIBERTY BLVD.		 3. Date of Earliest Transaction (Month/Day/Year)
03/03/2008
(Street)

ENGLEWOOD, CO 80112		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy) $ 18.09 03/03/2008   J(1) V 102,560     (2) 03/01/2012 Series A Liberty Entertainment Common Stock 102,560 (1) 102,560 D  
Stock Option (right to buy) $ 15.95 03/03/2008   J(1) V 50,000     (3) 07/31/2013 Series A Liberty Entertainment Common Stock 50,000 (1) 50,000 D  
Stock Option (right to buy) $ 14.53 03/03/2008   J(1) V 50,000     (4) 08/06/2014 Series A Liberty Entertainment Common Stock 50,000 (1) 50,000 D  
Stock Option (right to buy) $ 17.43 03/03/2008   J(1) V 60,000     (5) 08/02/2012 Series A Liberty Entertainment Common Stock 60,000 (1) 60,000 D  
Stock Option (right to buy) $ 16.47 03/03/2008   J(1) V 36,168     (6) 02/28/2013 Series A Liberty Entertainment Common Stock 36,168 (1) 36,168 D  
Stock Option (right to buy) $ 23.32 03/03/2008   J(1) V 67,600     (7) 03/29/2014 Series A Liberty Entertainment Common Stock 67,600 (1) 67,600 D  
Stock Option (right to buy) $ 25.21 03/03/2008   J(1) V 68,564     (8) 12/24/2014 Series A Liberty Entertainment Common Stock 68,564 (1) 68,564 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROSENTHALER ALBERT E
12300 LIBERTY BLVD.
ENGLEWOOD, CO 80112		       Senior Vice President  

Signatures

 /s/ Albert E. Rosenthaler   05/09/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) Effective 03/03/08 the Issuer completed a reclassification exempt under Rule 16b-7 (the "Reclassification") in which each share of the Issuer's Liberty Capital common stock (par value $.01 per share) was reclassified as one share of the same series of the reclassified Liberty Capital common stock (par value $.01 per share) and four shares of the same series of the Issuer's new Liberty Entertainment common stock (par value $.01 per share). The Option was received in connection with the Reclassification as a result of holding stock options to acquire shares of the Issuer's Series A Liberty Capital common stock at the time of the Reclassification. The Reporting Person is voluntarily reporting this Form 5 transaction early on this Form 4.
(2) 100% of the shares were exercisable on the transaction date.
(3) 40,000 of the shares were exercisable on the transaction date and the balance of the shares will vest on 07/31/08
(4) 30,000 of the shares were exercisable on the transaction date and the balance of the shares will vest as to 10,000 shares on each of 08/06/08 and 08/06/09.
(5) 37,500 of the shares were exercisable on the transaction date and the balance of the shares will vest as to 3,750 shares quarterly through 08/02/09.
(6) 18,084 of the shares were exercisable on the transaction date and the balance ofthe shares will vest as to 2,260.50 shares quarterly through 02/28/10.
(7) 12,675 of the shares were exercisable on the transaction date and the balance of the shares will vest as to 4,225 shares quarterly through 03/29/11.
(8) The option will vest as to 4,285.25 shares quarterly through 12/24/11.
 
Remarks:
The trading symbol for the Issuer's Series A Liberty Entertainment common stock is LMDIA.

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