<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>1860</FormatID>
      <FormatName>M2TS</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Video</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>M2TS is the video stream packet format used on Blu-ray discs. M2TS is similar to fmt/585 - MPEG-2 Transport Stream, but instead features 192 byte packets, with a 4 byte TP_extra_header preceeding each 188 byte transport packet. Filenames usually take the form 'xxxxx.mts' or xxxxx.m2ts' where xxxxx represents a numeric value, beginning with 00000 and incrementing by 1 for each stream.</FormatDescription>
      <BinaryFileFormat>
      </BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>225</ProvenanceSourceID>
      <ProvenanceName>National Library of Scotland / National Library of Scotland</ProvenanceName>
      <ProvenanceSourceDate>10 Jul 2017</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>10 Jul 2017</LastUpdatedDate>
      <FormatNote>
      </FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>fmt/1055</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <Developers>
        <DeveloperID>228</DeveloperID>
        <DeveloperName>Sony</DeveloperName>
        <OrganisationName>Sony</OrganisationName>
        <DeveloperCompoundName>Sony / Sony</DeveloperCompoundName>
      </Developers>
      <Support>
        <SupportID>228</SupportID>
        <SupportName>Sony</SupportName>
        <OrganisationName>Sony</OrganisationName>
        <SupportCompoundName>Sony / Sony</SupportCompoundName>
      </Support>
      <ExternalSignature>
        <ExternalSignatureID>2050</ExternalSignatureID>
        <Signature>mts</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>2051</ExternalSignatureID>
        <Signature>m2ts</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>1421</SignatureID>
        <SignatureName>M2TS</SignatureName>
        <SignatureNote>BOF: offset 4, 0x47 sync byte appearing every 192 bytes from hereon. https://www.google.ch/patents/US7106946</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>1685</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>4</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>47{191}47{191}47{191}47{191}47{191}47{191}47{191}47</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
