I used to burn discs of hi bit rate MP3 occasionally- until I figured out how to transcode CD tracks to 48 khz & burn them on DVDs. This totally smokes the best results I've ever heard from any MP3. And I still get several hours of music per disc. Of course it can only be played back on a DVD player, but I don't listen to MP3 in the car nor do I have an Ipod or Rio.
There's a good chance that the future of music my be downloads, but I don't look forward to it- the only ones to gain from this are Big Music. Once no one has any "files" in their possession, the "content provider" can charge whatever he wants, whenever he wants. And just how the hell are you supposed to take music in the car with you? Or the beach? Or on your canoe trip to the Boundry Waters?
No, I'll always want to actually have a physical media in my possession to do with as I wish, whenever I wish. I like having the box, art, pictures, credits, etc. But eventually I might be outta luck. Guess when that day comes I'll probably just kick back and listen to the CDs, DVD-A, & SACD discs I've already got.