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<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
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    <FileFormat>
      <FormatID>2586</FormatID>
      <FormatName>Apple Partition Map Disk Image</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Aggregate</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>Apple Partition Map Disk Image is specific to describing the contents and structure of Apple Partition Map (APM) partition scheme, it can be thought of as a container format for multiple filesystem image files. It was developed by Apple in around 1988 with the introduction of Apple Partition Map scheme on Macintosh II, a scheme that defines how the data is organized on a singular disk. A disk image is a uncompressed copy of the contents of a disk or a folder, it can facilitate certain types of backup and recovery strategies. Please see ID: fdd000348 from Library of Congress and other links attached to this entry for further information.</FormatDescription>
      <BinaryFileFormat>
      </BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>220</ProvenanceSourceID>
      <ProvenanceName>The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints</ProvenanceName>
      <ProvenanceSourceDate>17 Aug 2022</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>17 Aug 2022</LastUpdatedDate>
      <FormatNote>http://fileformats.archiveteam.org/wiki/Apple_Partition_Map

https://mac-optimization.bestreviews.net/the-different-partition-format-types-on-mac/

https://www.loc.gov/preservation/digital/formats/fdd/fdd000348.shtml

https://en.wikipedia.org/wiki/Apple_Disk_Image

https://docs.microsoft.com/en-us/windows/win32/imapi/disc-formats</FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>fmt/1740</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <Developers>
        <DeveloperID>15</DeveloperID>
        <DeveloperName>
        </DeveloperName>
        <OrganisationName>Apple Computer, Inc.</OrganisationName>
        <DeveloperCompoundName>Apple Computer, Inc.</DeveloperCompoundName>
      </Developers>
      <Support>
        <SupportID>15</SupportID>
        <SupportName>
        </SupportName>
        <OrganisationName>Apple Computer, Inc.</OrganisationName>
        <SupportCompoundName>Apple Computer, Inc.</SupportCompoundName>
      </Support>
      <ExternalSignature>
        <ExternalSignatureID>3147</ExternalSignatureID>
        <Signature>toast</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3149</ExternalSignatureID>
        <Signature>iso</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3150</ExternalSignatureID>
        <Signature>cdr</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3151</ExternalSignatureID>
        <Signature>dmg</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3152</ExternalSignatureID>
        <Signature>bin</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3153</ExternalSignatureID>
        <Signature>img</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>2078</SignatureID>
        <SignatureName>Apple Partition Map Disk Image, sig n.1</SignatureName>
        <SignatureNote>BOF; Offset: 0; Magic Bytes: wildcard bytes between 0 to 16 bytes, followed by 0x45520200, an exact 508 wildcard bytes followed by 0x504D</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>2406</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
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          <IndirectOffsetLength>
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          <Endianness>
          </Endianness>
          <ByteSequenceValue>{0-16}45520200{508}504D</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <InternalSignature>
        <SignatureID>2079</SignatureID>
        <SignatureName>Apple Partition Map Disk Image, sig n.2</SignatureName>
        <SignatureNote>BOF; Offset: 0; Magic Bytes: wildcard bytes between 0 to 16 bytes, followed by 0x45520800, an exact 2044 wildcard bytes followed by 0x504D</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>2407</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
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          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>{0-16}45520800{2044}504D</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <InternalSignature>
        <SignatureID>2088</SignatureID>
        <SignatureName>Apple Partition Map Disk Image, sig n.3</SignatureName>
        <SignatureNote>BOF; Offset: 0; Magic Bytes: wildcard bytes between 0 to 16 bytes, followed by a set of null bytes, then an exact 508 wildcard bytes followed by 0x504D</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>2419</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
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          <IndirectOffsetLength>
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          <Endianness>
          </Endianness>
          <ByteSequenceValue>{0-16}00000000{508}504D</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1878</RelatedFormatID>
        <RelatedFormatName>Apple Disk Image</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>2587</RelatedFormatID>
        <RelatedFormatName>Apple Partition Map ISO 9660 Hybrid</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>2605</RelatedFormatID>
        <RelatedFormatName>Apple Partition Map - ISO 9660 - UDF Hybrid Disk Image</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>1255</RelatedFormatID>
        <RelatedFormatName>ISO 9660 Disk Image File</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
