I found some DDR RAM that I want and it's everything that I need just it doesn't say anything about being mac compatible. Will I need to format it or anything or will it just work?
RAM doesnt have to be formatted to work on a Mac. any RAM can be used on a Mac providing its the right type.
the old MacBook, old MacBook Pro, iMac and Mac Mini use DDR2 800MHz SO-DIMMs, the Mac Pro uses DDR2 800MHz FB-DIMMs and the new MacBook and MacBook Pro use DDR3 1066MHz SO-DIMMs.
it's a powerbook g4 12" 1.33ghz, i know it takes DDR 333 PC2700, they have some under the mac category on newegg and it's more expensive than the one just found under the search. So i think i will just buy that, all the specs match, thanks guys.