# 47 53 52 2D 31 35 34 31 — File format magic numbers

For 47 53 52 2D 31 35 34 31, offset is 0; extension is g64; format is Commodore 64 1541 disk image (G64 format), recorded from its source on 2026-08-03.

- **Hex signature:** 47 53 52 2D 31 35 34 31 _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 0 _(unconfirmed — we could not tie this to the quote below)_
- **Extension:** g64
- **Format:** Commodore 64 1541 disk image (G64 format)

## What the source says

> g64 | <https://en.wikipedia.org/wiki/Commodore_64> Commodore 64 1541 disk image (G64 format)

## Source

- https://en.wikipedia.org/wiki/List_of_file_signatures

Last verified: 2026-08-03. Review by: 2027-08-03.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).