Forum Discussion

Zaachary's avatar
Zaachary
Brass Contributor
Mar 30, 2026
Solved

The best way to repair a corrupted mp4 video file?

I recently used a data recovery tool to get back a few MP4 videos after an accidental drive format. While the file sizes look correct and the recovery software flagged them as "healthy," none of my m...
Dustinkk's avatar
Dustinkk
Copper Contributor
Mar 30, 2026

When it comes to repiar MP4 file. FF mpeg is a free, open-source command-line tool that can fix or recover MP4 files by re-muxing them, which often resolves corruption issues.

Steps to repiar MP4 file:

1. Download FF mpeg:

2. Open Command Prompt (Windows) or Terminal (Mac/Linux).

3. Run the following command to attempt repair:

ff mpeg -i corrupted. mp4 -c copy -map 0 repaired. mp4

This command copies streams without re-encoding, fixing minor issues.

4. Check if repaired mp4 plays correctly.

Additional FF mpeg options:

If the above doesn't work, try forcing the fix:

ff mpeg -i corrupted mp4 -vf "setpts=PTS" -af "asetpts=PTS" repaired. mp4

Or, to attempt a more in-depth repair:

ff mpeg -err_detect ignore_err -i corrupted mp4 -c copy repaired. mp4