I'm based in the UK and have a project that is currently in PAL, but I need to send it over to the states and I need to convert to NTSC. From reading articles online, there doesn't seem to be definitive guide on conversion. I've gone through compressor and exported an NTSC version but I wanted some advice to ensure that it works (I dont have an NTSC dvd player to test it on)
you can playback NTSC-DVDs on PAL-player but it wont work the other way round.
if you need to convert PAL to NTSC I would advice to use compressor with framecontrol. you should go 29.98 NDF and encode it as 29.98 NDF (progressive) otherwise you could get in trouble with the field-dominanz.
note: it´ll take a bit of time to create your NTSC-film out of your PAL-material.