how to repair a corrupted MP4 file?

[mod74]

Hi! my phone captured a mp4 video clip but neither it nor other players can play it back correctly. the audio is ok but the video is in green and black and seems like five pictures tiled. how could i possibly repair it? the video clip is very important and memorable for me. Thanks.

[Baldrick]

Video repair tool (try the trial first) or http://mp4repair.org

[mod74]

I tried both videorepair and mp4repair.com with no success!

[Baldrick]

Can you post a clip?

[mod74]

VID_20120816_200050.mp4
yes, of course!
actually, my phone (HTC Legend) saved clips as 3gp but I upgrade its RAM and the new OS uses mp4 format which could not be played back, that is why I have no correct file to input to VideoRepairTools

[Halaster]

Just wanted to comment that the Video Repair tool worked great for me.

I had a 3.6gb MP4 1080p video clip recorded with my HTC Evo 4g LTE that was corrupted due to the phone rebooting in the middle of recording.

Used another 1 minute clip as a reference, turned off entropy checking, and it was able to fully recover the file.
If you look at very first line of the the log it outputs as well you can easily figure out how to do a full 100% save with the trial version. Thanks for the suggestion. My father passed just a few days ago and this was the last video that has him in it.

[mgh]

If the video size is 956x699, it is going to be a problem. The height is odd number of pixels. You need to load it via avisynth using color space that accepts non-mod2 dimensions., crop it preferably to mod 4, and re-encode.

I have occasionally had problems with downloaded videos with odd number of pixels (usually in height), and the above is the solution.