Possible Bad AVI with Missing/Lost Portion of Video

[PedX]

I have an AVI file that is missing a few seconds. When I view this file in Windows Media Player, it jumps from 12:03 straight to 12:07. However, this doesn't screw up the synchronization between the audio and the video. Since this happens near a transition between scenes, it appears to work OK in Windows Media Player, but my theory is that there is audio between 12:03 and 12:07 but no video.

When I open this AVI in VirtualDub, I get the VBR error. If I play the input file at 12:03, the image freezes for a bit then becomes distorted, the audio then plays early (Guy says "Hey" before he should). Playing the output file around this time, the image freezes then distorts, and the audio then starts playing late (Guy says "Hey" long after he was supposed to). However, if I play the input file after the 12:07 mark, the video plays fine. Playing the output file after this time still shows audio sync problems.

Here's what I did: I created an uncompressed version of the audio, then I loaded this version of the audio into the original file and I compressed the audio again. This new AVI file has audio synchronization problems that seem to get worse towards the end of the file (3 second difference at 12 min mark, 31 second difference at the 90 min mark).

Not really sure if there is anything I can do, but your help is much appreciated. Bear with me though, I am new.

[dnix71]

Try to open the avi with VLC. If the time markers are broken it will usually offer to fix it for you.

The lost info can't be recovered, but VLC will make it more likely to play without hanging up.

Give VLC a copy of the file, not the original.

[PedX]

No luck, VLC doesn't ask to fix the file. VLC seems to play the file properly when if I start viewing before the 12 minute mark, but if I try to play it between 12:03 and 12:07, the video is screwy.

[Krispy Kritter]

Sounds like a corrupt file. Aside from cutting out the bad part, there likely isn't anything that can be done. VLC is likely skipping the bad frames during playback, it is pretty good at playing corrupt files.