When I play the actual resulting QuickTime movie files, it's not a good-sounding mix, which makes me worry, but when I import them back in to FCP, it sounds pretty close to the original, so I guess it might just be an artifact of the QuickTime software, but I don't know. Final Cut Pro seems to only be able to render them as AAC QuickTime movies, so that's what I did. I used Final Cut Pro X to make the files, and I exported/'shared' them as 'Video and Audio' files, in H.264, 720 x 480 resolution.
(I might eventually want to reduce the frames-per-second rate since the visuals are far less important than the audio, but that's probably an issue for another day.) There are a lot of instruments in the music, so it's important to preserve the mix among the 6 output channels. These are *music* files, mixed in 5.1, with minimal video accompaniment.
I'll try to describe the settings at each stage, but I'm not very familiar with all the terminology, so I'll err on the side of providing more information, even though I bet some of it doesn't matter: On second thought, I'm pretty sure the quality of the files on the DVD is significantly inferior to the originals.
