A small note for Tobbeo (who was asking about the possibility of 24fps):
Having done a small bit of research, it might be possible to do a pal dvd with 24->25fps pulldown, also called a 2:2:2:2:2:2:2:2:2:2:2:3 pulldown (google it for more info). Don't know that much about it yet, will need to do some testing. But could be a way to retain the 24fps...