MPEG File Size and Runtime differ greatly. How to fix it!?

[prophecy202]

I have downloaded several Mpegs or Avi's that have a file size of 120 megs or greater, at low resolution. But the runtime is less than 2 minutes.

When I click on different parts of the search bar in Windows Media player it jumps to different parts of the movie, but if I just let it play out it will only play the first minute and some odd seconds. Obviously the entire video is there, it's just a matter of matching up the assumed file runtime.

How do I fix the runtime of this video? Urgent help would much be appreciated as I need 2 of these videos to be playable on my portable media device for a show this weekend.

[prophecy202]

please someone explain what's wrong here.

[Ethlred]

Obviously the entire video is there,

Actually it's pretty obvious that it isn't all there. It could be a poor download and the video has bad spots in it. If you use a hex editor to examine the file you are likely to find sections of it are filled with 00 00 00 and so on. Or it could be a botched edit.

Try to play it in VLC, it tolerates all kinds of garbage.

[guns1inger]

Or open it in the latest g-spot. It will tell you if the file is incomplete (I suspect it is) or has broken frames.

[Baldrick]

MPEG files:
Use the quickstream fix in videoredo.If you want free tools try pvastrumento or projectx or mpg2cut2 and add the file and make a new mpg.

AVI files:
Digital Video Repair or see our Tools list under Video repair/fix.


And PLEASE wait some days before you bump a topic.

[PuzZLeR]

Just saw this thread, maybe late, but hopefully not too late.

I believe those .mpg files were .vob files previously. Instead of being properly converted to .mpg, they instead were just renamed in extension from .mpg to .vob, and some converted straight to .avi after. If that was the case then you will have problematic files.

The reason is that .vob files contain certain segmentation, and if not removed in a proper conversion it will remain in the file and navigate poorly. You will get weird files.

The best way is to use something like NeroVision.
Open DvD -> DvD video -> Add video files. You should find them properly converted in the imported folder of your choice.

If it's a repair issue I can add TMPGEnc MPEG Editor to Baldrick's list. Run it through in one pass. It won't re-encode but may fix the headers and GOPs that are wrong.

As well, what sometimes works is demuxing the video and audio streams separately and remuxing back together. Sometimes this fixes the header.

Good luck.