I just remembered this:
http://www.joystiq.com/2007/08/15/heavenly-sword-packed-with-10-gb-of-sound-data/
"Heavenly Sword packed with 10 GB of sound data"
Now keep in mind how short Heavenly Sword was, and you can start seeing just how much space uncompressed audio takes up.
My Mario Kart Wii friend code: 2707-1866-0957







