If the recording was automatically split by size (e.g., 2GB chunks), ensure all sequential parts are present, as metadata may only be fully intact in the primary file. Writing an MP4 Muxer for Fun and Profit - OBS Studio
The file is composed of "atoms" or boxes, including: ftyp: Identifies the file type and compatibility version. mdat: Contains the actual media data (video/audio). fetching_butterflies_0037.mp4
If you are having trouble with this specific file, consider the following common "Bug Report" scenarios: If the recording was automatically split by size (e
Holds the metadata and index required to play the file. ensure all sequential parts are present