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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 dU3FdINlEykQZqEik2X50w==

<SEC-DOCUMENT>0001199511-04-000002.txt : 20040109
<SEC-HEADER>0001199511-04-000002.hdr.sgml : 20040109
<ACCEPTANCE-DATETIME>20040109185553
ACCESSION NUMBER:		0001199511-04-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040108
FILED AS OF DATE:		20040109

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADVANCED DIGITAL INFORMATION CORP
		CENTRAL INDEX KEY:			0000770403
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				911618616
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 97057
		STREET 2:		11431 WILLOWS RD
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98073-9757
		BUSINESS PHONE:		4258953232

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 97057
		STREET 2:		P O BOX 97057
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98073-9757

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCHOEMAKER LINDA A
		CENTRAL INDEX KEY:			0001199511

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21103
		FILM NUMBER:		04519264

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 97057
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98073-9757
		BUSINESS PHONE:		4258954232

	MAIL ADDRESS:	
		STREET 1:		PO BOX 97057
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98073
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-08</periodOfReport>
    <issuer>
        <issuerCik>0000770403</issuerCik>
        <issuerName>ADVANCED DIGITAL INFORMATION CORP</issuerName>
        <issuerTradingSymbol>ADIC</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001199511</rptOwnerCik>
            <rptOwnerName>SCHOEMAKER LINDA A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 97057</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>REDMOND</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98073-9757</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>SVP &amp; General Counsel</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2004-01-08</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><value>11.525</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>11083</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><nature
OfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Stock</value><footnoteId id="F1"/></securityTitle><transactionDate><value>2004-01-08</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>10000</value><footnoteId id="F1"/></transactionShares><transactionPricePerShare><value>16.50</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1083</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction
></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Options (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>11.525</value></conversionOrExercisePrice><transactionDate><value>2004-01-08</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><footnoteId id="F3"/></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2"/></exerciseDate><expirationDate><value>2006-08-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOw
nedFollowingTransaction><value>40000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Shares sold pursuant to a 10b5-1 trading plan entered into in December 2003.</footnote><footnote id="F2">Options vest in four equal installments on August 17, 2002, 2003, 2004 and 2005.</footnote><footnote id="F3">Not applicable.</footnote></footnotes><remarks/><ownerSignature><signatureName>Linda A. Schoemaker</signatureName><signatureDate>2004-01-09</signatureDate></ownerSignature></ownershipDocument>

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