I'm late to this thread, but I've been dealing with this a bit. Most decent editing packages like Premiere, Vegas, Edius will do a conversion from PAL to NTSC and will do a LOT better job than the realtime converter in any DVD player. The main problem is that PAL is 25 frames per second while NTSC is 30 frames per second. The cheap converters just repeat a set of 5 frames during a second 1-2-2-3-4-4-5-etc. That leads to an artifact called "judder", and it's most noticable on pans from left to right. A good converter actually creates new frames by "morphing" between pairs of frames, and helps insure smooth pans. Personally, if I have stuff in PAL to share, I'll make both PAL and NTSC version available. People in NTSC countries who have the ability to play PAL natively will get the PAL version, but the vast majority will get a better picture with smoother motion by getting the NTSC conversion.