Commodore 64 1581 disk image (D81 format) — file signature A0 33 44 A0 A0 at offset 0x61819

For Commodore 64 1581 disk image (D81 format), hex signature is A0 33 44 A0 A0; offset is 0x61819; extension is d81, verified against its source on 2026-09-22.

What the source says

A0 33 44 A0 A0 | 3D | 0x61819 | d81 | Commodore 64 1581 disk image (D81 format) |

— en.wikipedia.org, retrieved 2026-09-22

Source

• en.wikipedia.orghttps://en.wikipedia.org/wiki/List_of_file_signatures

Last verified against source: 2026-09-22. Due for re-check by 2027-09-22. This page as Markdown · OKF bundle · full dataset as JSON.