-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 T5bjI5GKOmZG/950xBth2sCwnIIAzhz4D/qhrO7JLmEW8bH72GR5GH5TnOQzR44L
 Na7CQTUVGNPbVIeTj33svw==

<SEC-DOCUMENT>0001104659-03-013609.txt : 20030701
<SEC-HEADER>0001104659-03-013609.hdr.sgml : 20030701
<ACCEPTANCE-DATETIME>20030630190610
ACCESSION NUMBER:		0001104659-03-013609
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030630
FILED AS OF DATE:		20030701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASCENT MEDIA GROUP INC
		CENTRAL INDEX KEY:			0000061442
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MOTION PICTURE & VIDEO TAPE DISTRIBUTION [7822]
		IRS NUMBER:				131679856
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		520 BROADWAY
		STREET 2:		FIFTH FLOOR
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401
		BUSINESS PHONE:		3104347000

	MAIL ADDRESS:	
		STREET 1:		520 BROADWAY
		STREET 2:		FIFTH FLOOR
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY LIVEWIRE CORP
		DATE OF NAME CHANGE:	20000609

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TODD AO CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MAGNA PICTURES CORP
		DATE OF NAME CHANGE:	19851128

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LIBERTY MEDIA CORP /DE/
		CENTRAL INDEX KEY:			0001082114
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-01461
		FILM NUMBER:		03766000

	BUSINESS ADDRESS:	
		STREET 1:		12300 LIBERTY BLVD.
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		7208755400

	MAIL ADDRESS:	
		STREET 1:		12300 LIBERTY BLVD.
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>j2651_4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
  <periodOfReport>2003-06-30</periodOfReport>
  <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000061442</issuerCik>
        <issuerName>ASCENT MEDIA GROUP INC</issuerName>
        <issuerTradingSymbol>AMGIA</issuerTradingSymbol>
  </issuer>
  <reportingOwner>
    <reportingOwnerId>
            <rptOwnerCik>0001082114</rptOwnerCik>
            <rptOwnerName>LIBERTY MEDIA CORP /DE/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
      <isDirector>0</isDirector>
      <isOfficer>0</isOfficer>
      <isTenPercentOwner>1</isTenPercentOwner>
      <isOther>0</isOther>
    </reportingOwnerRelationship>
  </reportingOwner>
  <nonDerivativeSecurity>
    <securityTitle>
      <value>Class A Common Stock</value>
    </securityTitle>
    <transactionDate>
      <value>2003-06-30</value>
    </transactionDate>
    <transactionCoding>
      <transactionFormType>4</transactionFormType>
      <transactionCode>J</transactionCode>
      <equitySwapInvolved>0</equitySwapInvolved>
      <footnoteId id="F1"/>
    </transactionCoding>
    <transactionTimeliness>
      <value/>
    </transactionTimeliness>
    <transactionAmounts>
      <transactionShares>
        <value>4624690</value>
      </transactionShares>
      <transactionValue>
        <value>0</value>
        <footnoteId id="F1"/>
      </transactionValue>
      <transactionAcquiredDisposedCode>
        <value>A</value>
      </transactionAcquiredDisposedCode>
    </transactionAmounts>
    <postTransactionAmounts>
      <sharesOwnedFollowingTransaction>
        <value>61120759</value>
      </sharesOwnedFollowingTransaction>
    </postTransactionAmounts>
    <ownershipNature>
      <directOrIndirectOwnership>
        <value>I</value>
      </directOrIndirectOwnership>
      <natureOfOwnership>
        <value>By subsidiary</value>
      </natureOfOwnership>
    </ownershipNature>
  </nonDerivativeSecurity>
  <derivativeSecurity>
    <securityTitle>
      <value>Class B Common Stock</value>
    </securityTitle>
    <conversionOrExercisePrice>
      <value>0</value>
      <footnoteId id="F1"/>
    </conversionOrExercisePrice>
    <transactionDate>
      <value>2003-06-30</value>
    </transactionDate>
    <transactionCoding>
      <transactionFormType>4</transactionFormType>
      <transactionCode>J</transactionCode>
      <equitySwapInvolved>0</equitySwapInvolved>
      <footnoteId id="F1"/>
    </transactionCoding>
    <transactionTimeliness>
      <value/>
    </transactionTimeliness>
    <transactionAmounts>
      <transactionShares>
        <value>4624690</value>
      </transactionShares>
      <transactionValue>
        <value>0</value>
        <footnoteId id="F1"/>
      </transactionValue>
      <transactionAcquiredDisposedCode>
        <value>A</value>
      </transactionAcquiredDisposedCode>
    </transactionAmounts>
    <exerciseDate>
      <value>1988-08-08</value>
      <footnoteId id="F1"/>
    </exerciseDate>
    <expirationDate>
      <value>1988-08-08</value>
      <footnoteId id="F1"/>
    </expirationDate>
    <underlyingSecurity>
      <underlyingSecurityTitle>
        <value>Class A Common Stock</value>
      </underlyingSecurityTitle>
      <underlyingSecurityShares>
        <value>4624690</value>
      </underlyingSecurityShares>
    </underlyingSecurity>
    <postTransactionAmounts>
      <sharesOwnedFollowingTransaction>
        <value>0</value>
      </sharesOwnedFollowingTransaction>
    </postTransactionAmounts>
    <ownershipNature>
      <directOrIndirectOwnership>
        <value>I</value>
      </directOrIndirectOwnership>
      <natureOfOwnership>
        <value>By subsidiary</value>
      </natureOfOwnership>
    </ownershipNature>
  </derivativeSecurity>
  <derivativeSecurity>
    <securityTitle>
      <value>Class B Common Stock</value>
    </securityTitle>
    <conversionOrExercisePrice>
      <value>0</value>
      <footnoteId id="F1"/>
    </conversionOrExercisePrice>
    <transactionDate>
      <value>2003-06-30</value>
    </transactionDate>
    <transactionCoding>
      <transactionFormType>4</transactionFormType>
      <transactionCode>C</transactionCode>
      <equitySwapInvolved>0</equitySwapInvolved>
      <footnoteId id="F1"/>
    </transactionCoding>
    <transactionTimeliness>
      <value/>
    </transactionTimeliness>
    <transactionAmounts>
      <transactionShares>
        <value>4624690</value>
      </transactionShares>
      <transactionValue>
        <value>0</value>
        <footnoteId id="F1"/>
      </transactionValue>
      <transactionAcquiredDisposedCode>
        <value>D</value>
      </transactionAcquiredDisposedCode>
    </transactionAmounts>
    <exerciseDate>
      <value>1988-08-08</value>
      <footnoteId id="F1"/>
    </exerciseDate>
    <expirationDate>
      <value>1988-08-08</value>
      <footnoteId id="F1"/>
    </expirationDate>
    <underlyingSecurity>
      <underlyingSecurityTitle>
        <value>Class A Common Stock</value>
      </underlyingSecurityTitle>
      <underlyingSecurityShares>
        <value>4624690</value>
      </underlyingSecurityShares>
    </underlyingSecurity>
    <postTransactionAmounts>
      <sharesOwnedFollowingTransaction>
        <value>0</value>
      </sharesOwnedFollowingTransaction>
    </postTransactionAmounts>
    <ownershipNature>
      <directOrIndirectOwnership>
        <value>I</value>
      </directOrIndirectOwnership>
      <natureOfOwnership>
        <value>By subsidiary</value>
      </natureOfOwnership>
    </ownershipNature>
  </derivativeSecurity>
  <footnotes>
    <footnote id="F1">Shares of Class B Common Stock were received as interest payment for the period ended June??30, 2003, under the First Amended and Restated Credit Agreement dated as of December??22, 2000, by and between the Issuer (as borrower) and a wholly-owned subsidiary of the Reporting Person (as lender), as supplemented and amended.  Shares of Class B Common Stock are immediately convertible into shares of Class A Common Stock on a 1-for-1 basis and have no expiration date.  Immediately after the issuance thereof, all shares of Class B Common Stock were converted into an equal number of shares of Class A Common Stock.</footnote>
  </footnotes>
  <ownerSignature>
    <signatureName>/s/ Charles Y. Tanabe, Senior Vice President</signatureName>
    <signatureDate>2003-06-30</signatureDate>
  </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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