They are .avi files; although most of them are XVid compression. The newer ones are compressed with the Lagarith Lossless Codec, but those ones aren’t giving me problems. But they all load into Vegas and appear on the timeline and in the preview box just fine.
The weird thing is that I’ve rendered clips from these .avi files many, many times with Vegas in the past. The stranger part is that I put various clips from the same file on the timeline, and some are rendering and others aren’t; that’s what makes me think it isn’t a file type issue. I saved this same video a few weeks ago and all of the clips rendered fine. I’m just resaving it with some better quality clips, but it isn’t even the newer clips that are a problem, it’s a few of the older ones.
What I’m trying to figure out here is why it worked before but isn’t working now.