Here are my thoughts on what frame-rate conversion should do in DVD-o-matic * 23.976fps or 24fps -> 25fps Change video timing. Audio resampling with selectable quality. * 25fps -> 24fps Change video timing. Audio resampling with selectable quality. * 50i fps -> Deinterlace with selectable filters: linear blend, motion compensate etc. Then consider 24fps or 25fps destination as above. Optionally, bob or YADIF might be good to produce a proper 48p or 50p film. * 59.94i or 60i fps -> Deinterlace with selectable filters, for example Bob, linear blend Suggest 30fps as destination since a proper inverse telecine requires manual work and should be done in another program. A selectable inverse telecine can save someones day, but be warned... Again, bob or YADIF might be good to produce a proper 60p film. Audio resampling when required, with selectable quality. Never add or drop frames unless inverse telecining. Audio stretching without changing pitch in my ears is a pain to get right, so should be done in a controlled fashion, not automatically. But it won't hurt (much) to have an option, right? A lot (most?) of Swedish DVD-releases from film does a simple 24fps -> 25fps speed-up of video with simple, high-quality resampling of the audio. Not many people notice the pitch-error. /Adam Klotblixt