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*Details: File format summary

   
 

 

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Signatures

External signatures File extension: dmg
File extension: smi
File extension: img
File extension: image
Internal signatures
Name Apple Disk Copy Image
Description The byte at position 0x40-43 represent four potential values for data block sizes and 0x44-47 represent 3 potential tag sizes in bytes (there is a possiblity there are additional values for these sequences which may require future adjustment to the signature) 0x50 defines the disk encoding. Byte 0x51 defines the 'format byte'. Bytes 0x52-53 are the private word/magic number used for identification. Further information is found here: http://68kmla.org/wiki/index.php/DiskCopy_4.2_format_specification
Byte sequences
Position type Absolute from BOF
Offset 64
Byte order  
Value (00064000|000C8000|000B4000|00168000)(00002580|00004B00|00000000){8}(00|01|02|03)(02|12|22|24|96)0100
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