Format
FAT Disk Image
Summary
- Name
- FAT Disk Image
- Identifiers
- PUID: fmt/1087
- Format type
- Aggregate
- Description
- The File Allocation Table is a file system architecture used across a range of computer systems. This entry aims to capture instances where the file system has been exported as a portable disk image. It may be possible and desirable to distinguish between different types of FAT image. Please contact the PRONOM team if you can assist with this.
- File extensions
-
img,ima,dsk - Submitted by
- National Library of Scotland / National Library of Scotland
Relationships
- Has lower priority than
Internal signatures
FAT Disk Image
- Description
- BOF: Jump instruction bytes 1 and 3 - 0XEB{1}0x90, byte 14 = Sectors per cluster, any from 1, 2, 4, 8, 16, 32, 64, or 128
- Provenance
- Based largely on https://en.wikipedia.org/wiki/Design_of_the_FAT_file_system with reference to http://thestarman.pcministry.com/asm/mbr/DOS50FDB.htm
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
EB{1}90{10}(01|02|04|08|10|20|40|80)- Endianness
- None
Changelog
-
V92
- Release date
- 20 September 2017
-
Added format
FAT Disk Image: Full entry added. Requested by National Library of Scotland.
-
Added signature
FAT Disk Image: Signature developed with National Library of Scotland.