A NeoGAF thread on weird things in games prompted me to dig this up. The video’s description does a good job describing why I posted it:
Because of the way games were manufactured, a lot of game discs for the Sega CD, Saturn and PS1 were "mixed mode" -- meaning they could have game data (stored on track 01) and still have room for CD music (tracks 02 through whatever). Some games used their CD music tracks (aka "redbook audio") for in-game music, but others stored secret messages and things on theirs.
This one, from Tomcat Alley, always seemed really strange to me, and there is absolutely no record of it anywhere else on the internet. So, I decided to archive it. I've heard DigitalPictures releases have weird redbook audio tracks on them, too.
