Thanks Sleepless,tried free trial of Nero 7, didn't help. Now Realplayer can't play those. Exactly the file designation is hdtv xvid bia.avi. BUT reinstalled my VLC and AMAZING to see them play properly this time. Will look into MPlayer later.
So those HDTV files do work.
But VLC as default player does not launch video from Limewire panel. Must use Real for that to work. (ie change default in control panel).
PS. Maybe VLC works now because I selected full installation this time instead of default normal, if I recall.

Yes, the full install will probably work better

Strange that Nero can't play something VLC can. The only files that I haven't been able to play in Nero 7 are some special .bin and .cue files which I never found out what format they were. It plays pretty much anything I think. Might be some codec issue on your PC.

mPlayer is the only player I know of that can sync audio and video + can adjust color, brightness and contrast. Don't know why I don't just use it as default. Maybe controls are a bit too complecated for my taste. You need to use the keyboard for everything (It's Linux based) I just double-click a file and Nero pops up. BTW Nero does not preview well. I have to copy the incomplete file and then fix the file to be able to preview.

Good going for getting your file to work