For SD this is what I like:
I cut the video in HD. (I feel FCP7 does a bad job of converting HD to SD in the timeline) When I’m done I go to File, Export, QuickTime movie. Make sure “Make Movie Self-Contained” if you want the full movie not just a reference file. It will export your movie out in its current settings. Bring movie into compressor. Add the “DVD: Best Quality 90 minutes” setting and compress it. Then bring the mpeg files into DVD studio Pro. Under the General Tab make sure the Display mode is set to “16:9 Letterbox”. If it plays on a 16×9 TV it will feel the screen. If it plays on a 4:3 TV it will letter box the video.
Hope this helps and best of luck.
Stephen Smith
Utah Video Productions
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