Are you thinking of Knoppix Almos-tGood? I've used Knoppix which seems to be alright. I've also used a smaller variant of Knoppix which was called "Damn Small Linux" which I wrote on a mini-cd. Knoppix is alright if you want to get a feel for Linux and see how it is.

Note: Its not called "Darn" in the "Darn Small Linux" I'm sure you can figure out what it is (The language filter zapped it hehe).