I have filmed several dvds in PAL and have converted this in compressor into NTSC - there are a set of PAL and NTSC DVDs. My Client wants these downloadable so, If i make the PAL (native, the cameras used PAL, 25fps) downloadable as .mp4 (1920x1080 or 1280x1080), could someone then just burn a NTSC DVD from them? ie, could a North American downloaded drag, drop the .mp4 into idvd and make a NTSC DVD from it? Whats the best apps for this? are there any guides out there or is it a straightforward process?