Mystery file format

[aurummachina]

So I have this video file with no file extension. we'll say it's called "title. " now the problem i'm having is that it is only 15 minutes long and 4.5 GB in size, with no audio. I was going to convert it to mp4 to put it on my ipod, but my video converter can't tell what kind of video it is, & so the converted video comes out as garbage. how do i determine what the proper file extension is?

[redwudz]

Try MediaInfo. It should be able to determine the file type without an extension.

[aurummachina]

thanks now i know it's an avi, sadly that didn't fix my underlying problem of when i try to convert the video to mp4 it either turns out garbage or it plays at double speed altering the duration to 6m01s instead of 15m20s.

[redwudz]

You might try Any Video Converter Free Version. I've had good luck with it with some odd formats. I assume you probably already added the .avi extension to it, though that may not help. Or it may be that you just have a badly corrupted file.

[poisondeathray]

How do you know the proper duration is 15m20s ?

Have you successfully played the file in a media player? if so , which ones?

Is there supposed to be audio?

What does gspot say about the file?

Did you try renaming the extension ".avi"

Can you post the mediainfo report , (view=>text) copy & paste the report back