If you have the file but it won't play, you may need a more versatile media player or a repair tool:

These systems often use alphanumeric sequences for recorded segments. If you cannot open the file:

Right-click the file and select Properties (Windows) or Get Info (Mac) to see if there is a "Comment" or "Origin" tag.

If you have a screenshot from the video, upload it to Google Images or TinEye .

The most reliable player for opening corrupted or unusual MP4 files. Download it at VideoLAN .