The DVD Specification doesn't allow mixing 2 video standards in the same project.
You can consider DVD 10 (replicated), double-sided, single layer disc distribution. PAL on one side, NTSC on the other; not much room for a label, but cheaper, and more compatable because it's replicated. Or, in January sometime, we're supposed to get double-sided DVD + R's from Phillips, which could be almost as compatable as replicated discs, and cheaper if you need just a few of them.
If you are going to go ahead with two DVD R's, distribute your project's on two 3.95 GB discs. Find someone with an S201 to do the final burn (you can take the files to him/her on two DVD R's that you write the Video TS and Audio TS folders on, with DVD SP or Toast). These 3.95GB discs are much more compatable with DVDplayers out there (you don't want to be handling tech support from a viewer in Japan whose disc of yours won't play, I wouldn't imagine!
Jag tycker inte du ska göra en DVD i endast NTSC då NTSC är så mycket sämre.