Thanks for the help so far... running into a snag. HCenc (GUI) is only encoding about 75% of the video, even though it says it's doing all frames and it completed successfully. I play the AVS through Windows Media Player and the whole thing plays all the way to the end. 75% is suspiciously close to 24/30, so I'm wondering if it's a framerate problem.

I've been trying to use an m2v file extracted from a VOB file as my source, but I'm wondering if it wouldn't be better to just use the VOB as the source. Perhaps by not using the VOB, I'm losing some framerate/other hints that would help out the encoder. Any other suggestions welcome.