MacroMind Multimedia Movie or Microsoft Multimedia Movie — file signature 52 49 46 46 ?? ?? ?? ?? 52 4d 4d 50 at offset 0

For MacroMind Multimedia Movie or Microsoft Multimedia Movie, hex signature is 52 49 46 46 ?? ?? ?? ?? 52 4d 4d 50; offset is 0; extension is mmm, verified against its source on 2026-09-22.

What the source says

52 49 46 46 ?? ?? ?? ?? 52 4d 4d 50 | RIFF????RMMP | 0 | mmm | MacroMind Multimedia Movie or Microsoft Multimedia Movie |

— 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.