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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 VMibbZSScOdPfz1MixuYs2SMfK8G7QyXHFKahNChqngDESpSwikdMxySaLuEPhE2
 tIo1H3AbvgzmTljenyqk2w==

<SEC-DOCUMENT>0001209191-03-011454.txt : 20030710
<SEC-HEADER>0001209191-03-011454.hdr.sgml : 20030710
<ACCEPTANCE-DATETIME>20030709210635
ACCESSION NUMBER:		0001209191-03-011454
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030701
FILED AS OF DATE:		20030710

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUMPHREY WILLIAM A
		CENTRAL INDEX KEY:			0001187728
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-01461
		FILM NUMBER:		03780963

	BUSINESS ADDRESS:	
		STREET 1:		C/O LIBERTY LIVEWIRE CORP
		STREET 2:		520 BROADWAY 5TH FLOOR
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401
		BUSINESS PHONE:		3104347000

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc4a.xml
<DESCRIPTION>FORM 4/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4/A</documentType><periodOfReport>2003-07-01</periodOfReport><dateOfOriginalSubmission>2003-07-03</dateOfOriginalSubmission><notSubjectToSection16>1</notSubjectToSection16><issuer><issuerCik>0000061442</issuerCik><issuerName>ASCENT MEDIA GROUP INC</issuerName>        <issuerTradingSymbol>AMGIA</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001187728</rptOwnerCik><rptOwnerName>HUMPHREY WILLIAM A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President, Media Mngmt. Srvcs.</officerTitle></reportingOwnerRelationship></reportingOwner><d
erivativeSecurity><securityTitle><value>Stock Option</value><footnoteId id="F4" /></securityTitle><conversionOrExercisePrice><value>7</value></conversionOrExercisePrice><transactionDate><value>2003-07-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>J</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1" /></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>175000</value></transactionShares><transactionValue><value>0</value><footnoteId id="F3" /></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-09-03</value><footnoteId id="F2" /></exerciseDate><expirationDate><value>2012-09-03</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>175000</value></u
nderlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">A wholly-owned subsidiary of Liberty Media Corporation ("Liberty Media") merged with and into the Issuer on July 1, 2003 (the "Merger").  At the effective time of the Merger, each stock option of the Issuer held by the Reporting Person immediately prior to the effective time of the Merger was assumed by Liberty Media and converted into an option exercisable for 0.1147 of a share of Liberty Media's Series A Common Stock for each share of Class A Common Stock of the Issuer for which such stock option was exercisable.</footnote><footnote id="F2">Twenty-five percent (25%) of the option becomes exercisable on September 3, 2004, the next 25% becomes exercisable on September 3, 2005, the 
next 25% becomes exercisable on September 3, 2006 and the final 25% becomes exercisable on September 3, 2007.</footnote><footnote id="F3">The stock options were issued to the Reporting Person as part of his compensation package and no cash was paid for the stock options.</footnote><footnote id="F4">This amendment is being filed solely to indicate that the Reporting Person is no longer subject to Section 16 of the Securities Exchange Act of 1934, as amended.  The original filing contained an electronic system error beyond the control of the electronic filer caused by the third party administrator that omitted the check mark that indicates that the Reporting Person is no longer subject to Section 16. </footnote></footnotes><ownerSignature><signatureName>William A. Humphrey</signatureName><signatureDate>2003-07-09</signatureDate></ownerSignature></ownershipDocument>

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