<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType><periodOfReport>2002-10-10</periodOfReport><dateOfOriginalSubmission>2002-10-10</dateOfOriginalSubmission>
    <issuer>
        <issuerCik>0001040973</issuerCik>
        <issuerName>MEDIABAY INC</issuerName>
        <issuerTradingSymbol>MBAY</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000904829</rptOwnerCik>
            <rptOwnerName>HERRICK NORTON</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE HERRICK COMPANY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2 RIDGEDALE AVENUE</rptOwnerStreet2>
            <rptOwnerCity>CEDAR KNOLLS</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07927</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Convertible Senior Note Due September 30, 2007</value><footnoteId id="F1"/></securityTitle><conversionOrExercisePrice><value>2.00</value></conversionOrExercisePrice><transactionDate><value>2002-10-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>75000</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2002-11-27</value></exerciseDate><expirationDate><value>2007-09-30</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>75000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>150000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Huntingdon</value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">The purpose of this amendment is to delete transactions previously reported in the Form 4 for October 10, 2002 of the acquisition of a convertible note and warrants to purchase Common Stock on October 10, 2002.  Although  the convertible note and warrants were issued on October 10, 2002, the note and warrants were not convertible into shares of Common Stock until approved by the Issuer's shareholders.  Approval for the conversion was obtained on November 27, 2002.  Accordingly the Reporting Person has filed a separate report showing the dates of these transactions as November 27, 2002.  The transaction in the table is being reported solely to gain access to the system.</footnote></footnotes><remarks/><ownerSignature><signatureName>Norton Herrick</signatureName><signatureDate>2003-09-05</signatureDate></ownerSignature></ownershipDocument>

