Ugh, the problem is definitely not just my computer. For some reason the Bib Fortuna/Droid scene now glitches like crazy. I compressed the video down to a single DVD-R and did a test burn. It freezes on my standalone, just as the full-resolution version does in PowerDVD. Yet, the un-remuxed version plays fine. Could something be happening in the remuxing process that's causing the video to stutter? What would cause such a thing?