" It was incorrectly flagged as CX and it's not. That's why the volume fluctuates so badly on a lot of players. My player auto-detects an incorrectly turns CX on, but I found the pin inside to pull that disables it.

That's very interesting. I wonder if I could force CX off on my player. I ended up running the commentary through a Vegas filter that levelled out the volume at a predetermined level. It worked beautifully, but I'd still like to get a pristine recording.

"Also, I've checked and the commentary is completely mono, so I could record in stereo and put the movie soundtrack in mono on the other channel. This will make it easier for those wanting to sync it back up to the film.

When I mastered my DVD with the PCM/AC3/commentary soundtracks, I ended up grouping some of the commentaries together because I had used up all 99 chapter stops. The segements aren't exactly where they are on the LD, but they are close enough, and you can access each one individually (or in their clusters.)