[KLF] Converting Andy's White Room to NTSC

Anyone out there well versed in DVD ripping, etc? I've been trying to convert The White Room to NTSC but am having problems. The framerate is an unusual 20fps instead of the usual 25fps PAL. The result when I try to convert is that the film clocks in at 35m while the soundtrack continues for another 15m. I've been messing about with TMPGenc but, ah, it just ain't workin! Anyone have suggestions out there? While I can play PAL DVDs my multisystem DVD player is cheapo and not user friendly remote-wise and basically a pain in the ass to use. :) Let me also chime in, however, and say how fantastic these DVDs are! Never thought I'd get to see KLF vids in such great quality! -paul