JpegDigger - JpegDigger is designed for recovering deleted photos from memory cards but it works on hard drives...
Stellar Video Repair - Stellar Repair for Video is the world’s best tool for repairing corrupt, broken or damaged MP4...
Recuva - Accidentally deleted an important file? Lost files after a computer crash?
untrunc - Restore a truncated mp4/mov. Improved version of ponchio/untrunc
myPhoto Recovery - myPhoto Recovery is a utility for recovery of lost and deleted photos.
Fix.video - Upload your damaged video and we Fix It! Repair corrupt MP4, MOV, 3GP files Easily - Video recovery