How to fix "This item is in a format we don't support" in VLC, QuickTime, Windows Media Player
This item is in a format we don't support. 0xc00d36b4
What this error means
Windows Media Player could not recognise the container or codec.
Why it happens
- Unsupported codec
- Damaged file structure
How to fix it
- Try VLC
- Use our free MOV to MP4 converter if the file plays elsewhere
- Run the free check here for damage
About MP4 video files
An MP4 is built from boxes ("atoms"): the video and sound data in an mdat box, and an index in a moov box that tells players where every frame is. Without a complete index, players cannot play anything — but the raw video data is usually still in the file.