I know this is an old thread, but..
I have the same problem;
I have some DV-material imported by iMovie. The audio is 48khz 32-bit floating bit. Every time I drag a new clip to the timeline in FCP, the audio needs to be rendered (only the audio). What is the solution for this? Converting all my material to 16-bit? I don’t wanna convert the video, since I will lose quality (and in these days, DV-footage looks so bad…) Maybe i could just convert the audio.
Any help is much appreciated.
Regards,
Søren