Here’s my DVD process:
1. create animation in AE, comp set to DV-NTSC preset
2. render to Quicktime Animation codec, millions of colours
3. Convert video to MPEG-2 in Apple’s Compressor app
4. Import MPEG-2 video into Apple’s DVD-Studio Pro app.
The steps are the same for other apps — just insert the name of your compression app (Cleaner or ProCoder) and your Authoring app (Encore?).
Step 2 ensures that your MPEG-2 video is of highest quality: garbage in, garbage out.
You must convert your video to MPEG-2 and author your DVD with a DVD authoring app.
Steve