[Jf Leduc]

Hi, I know this is a late answer but it may help someone else.

I have done this many times, always successfully, because I shoot 25p and produce both PAL and NTSC 24p DVD,s from my material all the time.

First, export all your sequence as 1 big Quicktime self contained movie, but make sure you use the “mixdown” command first (Sequence >Render Only>Mixdown).

Create a new FCP Sequence that matches your movie’s settings at 25p. Put your clip in the time line, double click it, go Tool>Conform 25 to 24.

Go to audio filters, use AUPitch. In it’s control, only modify the first and put it at 80. Render your audio and listen to parts where a woman speaks or where there’s music. It should all be perfect. If it isn’t, play with it between 80 and 96.

80 is the one that produces perfect results for me 99% of the time. I have used 96 only once with special experimental audio fx tracks that just screwed up at any less than that.