For audio files that Toast can't interpret, QuickTime will do it. Full DVD burning capabilities are now bundled in. The next best choice if you're publishing shorts. Just don't freeze. Take a look at the screenshots above.
Toast is solid as a rock even while burning in the background.
It is a phenomenal piece of software and if the final version is even half as stable you are in for a treat. Very nice OSX aqua like interface even while running on 8.6. Roxio Expects that the final release should be availabe within the next few months.