I've got a couple of AVIs with 2nd audio (commentary) tracks. I want to put them on a single DVD-R. Will Toast automatically detect the second audio tracks and keep them with the conversion to DVD? If not, how do I go about keeping the 2nd audio tracks so I can access them while watching the DVD?

I know that this can be done with ffmpegX, but only with a single AVI. Toast doesn't accept multiple Video_TS folders.