Tech Problem: rendered file won't work on streaming sites

[lilly-the-kid.livejournal.com]

Hi everyone,

I ran into a very frustrating problem and I hope someone here can help me.

I rendered a vid as .wmv using Sony Vegas 9 Platiunum. This is what I always use and usually it works just fine. The rendered video is ok, meaning it plays fine in the vlc-player. The file is, however, bigger than these files normally are and - and this is the main problem - it doesn't work on any streaming site I uploaded it to. On Vimeo the playback is very jerky and the vid itself it out of sync. On viddler, the sync is fine, but the picture quality is unbelievably bad, it's pretty much unwatchable. (I had converted the vid from .wmv to .wmv with the flv to many formats converter, because otherwise it wouldn't work well on Vimeo, usually this does the trick and the vid plays fine. In this case, however, there is another problem occurring, one I've never encountered before.)

I tried exporting to different formats and converting to different formats after rendering, but since I don't have any idea why this is happening in the first place, I'm not really making any progress.

The source files are .wmv and .vob. I made vids before which featured these formats and there was no problem with the finished vid.

I don't know what's happening and what I can do. Any help and ideas would be highly appreciated. Thanks in advance!


ETA: Thank you so much for all your suggestions! The .avi to .mp4 thing worked perfectly, I'm so happy!!! This whole thing provided me with a great opportunity to try new things and learn a bit more about the tech stuff and I'm so grateful for your help, thank you!