QUOTE(dhrandy1 @ Jan 12 2007, 11:29 PM)

I could back up all my computers, music, movies and pictures on one disc. Man that would save a lot of space.

you must not have much data to backup to only one disc.
I, too, do not really see a need for this much space on a medium that has such poor access times and can so easily be damaged. Sure, maybe for backup purposes if you made 2 copies and put 1 in a safe deposit box or something. Maybe, I could see a movie distribution kiosk where you could choose several movies to put onto one of these discs.
I would rather use portable hard drives or flash memory for data storage and technology continues to force more data into smaller and smaller designs in those areas...