I keep running into a problem with some .wmv files that I'm trying to convert to MPEG-1 VCD files using TMPGEnc Plus.

GSpot identifies the files as .asf.

At first, I thought that the audio was simply missing from my resulting TMPGEnc .mpg files.
But upon repeated review, it sound more like TMPGEnc is cramming all of the audio from the entire source file into the first second or two of the MPEG it produces...

I've tried repairing the files with ASFTools, but it keeps telling me there's nothing to repair -- that the files are fine.

If anybody could help me identifiy what's wrong here and possibly how to correct it, I would really appreciate it.
I've run many .asf/.wmv files through TMPGEnc before and never had any problems even remotely similar to this.

TIA!