Got Nero Suite? Nero Vision will do a decent basic transcode. Rip the main movie from the DVD with DVD Decrypter or DVD Shrink and then use Nero Vision on the VOBs to create a new DVD in NTSC. If you want to replicate the menus or want to get rid of the PAL speedup, then you need another method. On the NTSC version of Building Empire DVD, I didn't want to alter the soundtrack on the extras, since they were taken directly from CDs, so I just used Nero Vision. I got fancier with the main feature.