GitHub - DeltaMod/FFAST-MPEG: A really inefficient, but non-commandline, quick-fix tool for editing videos in simple ways. List of supported operations can be found in the readme
MPEG Repair: How Can I Recover Deleted or Corrupted MPEG Files
Repair broken or corrupt MPEG files - AfterDawn
MPEG Repair: How Can I Recover Deleted or Corrupted MPEG Files