Format

G64 GCR-encoded Disk Image Format

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Summary

Name: G64 GCR-encoded Disk Image Format
Identifiers: PUID: fmt/821
Description: G64 is a Commodore 64 emulation format. It is a raw group code recording (GCR) binary representation of a Commodore 1541 diskette.
File extensions: g41, g64, g71
Submitted by: Digital Preservation Department / The National Archives

Internal signatures

G64 GCR-encoded Disk Image Format

Description: BOF: GCR-1541.
Provenance: http://vice-emu.sourceforge.net/vice_15.html

Byte sequences

Min Frag Length: Absolute from BOF
Offset: 0
Max offset: 0
Byte Sequence: 4743522D3135343100
Endianness: None

Changelog

V83

Release date

17 December 2015
- Added format
  
  G64 GCR-encoded Disk Image Format: Full entry added.
- Added signature
  
  G64 GCR-encoded Disk Image Format: Signature developed through PRONOM Research.