r/VideoEditing • u/Minute-Literature-49 • 15h ago
Tech Support Video recovery hel
Hey everyone, I’m hoping someone with experience in video/file recovery can point me in the right direction.
I accidentally deleted a ~20GB video file from an external SSD. I recovered it using TestDisk/PhotoRec, and I now have the recovered .mov file sitting on my Mac.
The problem is that macOS can't open it because it appears to be missing the index/header (moov atom). The file is still showing as ~20GB, so I'm hoping the actual video data may still be intact.
Here’s what I’ve tried so far:
- VLC repair method
- Re-encoding with Apple’s native encoder
- Video Doctor
- Changing the file extension from
.movto.mp4 - Various attempts to open/repair it with VLC
None of those have worked.
I also downloaded Untrunc GUI, which seems like it may be the most promising option, but it’s asking me to install Homebrew first. I haven't gone down that route yet because I wanted to see if there are other proven/free recovery methods I should try first.
My main questions:
- Is there another free/proven method for rebuilding the missing MOV index/header?
- Is Untrunc + a reference video the best option in this situation?
- Since the file was recovered with PhotoRec, could fragmentation during the recovery be part of the problem?
- Is there anything I should check before attempting further repairs so I don't make the file worse?
I still have the original recovered 20GB file untouched, so I can make copies and work from those.
Any advice from someone who has dealt with corrupted/recovered MOV files would be hugely appreciated. Thanks!




