<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-03-11</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001004673</issuerCik>
        <issuerName>VENDINGDATA CORP</issuerName>
        <issuerTradingSymbol>VNX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001281200</rptOwnerCik>
            <rptOwnerName>NEWBURG MARK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6830 SPENCER ST.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89119</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Option/Right to Buy</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.49</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-01-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>300000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to the Consulting Agreement, the Company previously granted an option to Mr. Newburg to purchase up to 300,000 shares of the Company's common stock (&quot;Common Stock&quot;) pursuant to the Company's 1999 Stock Option Plan (the &quot;Plan&quot;).  The option is exercisable over a three-year period, with one-third vesting on the first anniversary date and the balance thereof to vest monthly thereafter over the subsequent 24-month period.  The option is exercisable as it vests.</footnote>
    </footnotes>

    <remarks>On March 11, 2005, Mr. Newburg was appointed to the Board of Directors of VendingData Corporation (the &quot;Company&quot;).  Prior to joining the Company's board of directors as an executive director, Mr. Newburg served as a consultant to the Company pursuant to a consulting agreement dated as of January 31, 2005 (the &quot;Consulting Agreement&quot;) between the Company and C2 Consulting, Inc., of which Mr. Newburg is president.</remarks>

    <ownerSignature>
        <signatureName>/s/ Mark Newburg</signatureName>
        <signatureDate>2005-03-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
