<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>924</FormatID>
      <FormatName>MPEG-4 Media File</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Audio, Video</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>Container format that can contain any of a number of audio and video codecs. It may also contain subtitle data or file metadata. This family of container can be used with several different file extensions.</FormatDescription>
      <BinaryFileFormat>Text</BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>1</ProvenanceSourceID>
      <ProvenanceName>Digital Preservation Department / The National Archives</ProvenanceName>
      <ProvenanceSourceDate>27 Oct 2009</ProvenanceSourceDate>
      <ProvenanceDescription>08/2023 (v.113) - Priority added over fmt/1616 (BibTeX Database File). Internally researched; 04/2024 (v.117): Description added as part of PRONOM Research Week 2023. Submitted by The Church of Jesus Christ of Latter-day Saints</ProvenanceDescription>
      <LastUpdatedDate>17 Apr 2024</LastUpdatedDate>
      <FormatNote>
      </FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>application/mp4</Identifier>
        <IdentifierType>MIME</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>fmt/199</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>video/mp4</Identifier>
        <IdentifierType>MIME</IdentifierType>
      </FileFormatIdentifier>
      <ExternalSignature>
        <ExternalSignatureID>907</ExternalSignatureID>
        <Signature>mp4</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>994</ExternalSignatureID>
        <Signature>m4v</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>995</ExternalSignatureID>
        <Signature>m4a</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>996</ExternalSignatureID>
        <Signature>f4v</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>997</ExternalSignatureID>
        <Signature>f4a</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>278</SignatureID>
        <SignatureName>MP4 Media File</SignatureName>
        <SignatureNote>Represents the following character sequence: {4}ftyp{0-64}(mp42|mp41|isom|iso2)*moov</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>357</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>4</Offset>
          <MaxOffset>
          </MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>Little-endian</Endianness>
          <ByteSequenceValue>66747970{0-64}(6D703432|6D703431|69736F6D|69736F32)*6D6F6F76</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1103</RelatedFormatID>
        <RelatedFormatName>3GPP Audio/Video File</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1388</RelatedFormatID>
        <RelatedFormatName>Apple Lossless Audio Codec</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>2422</RelatedFormatID>
        <RelatedFormatName>Canon Raw</RelatedFormatName>
        <RelatedFormatVersion>3.0</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>658</RelatedFormatID>
        <RelatedFormatName>Quicktime</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>2443</RelatedFormatID>
        <RelatedFormatName>BibTeX Database File</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
