Personally, I would not recommend using PS2 cheat devices on 1st generation PS3s (ones with the backwards compatibility technology). The reason -- if you insert and use it on a 1st gen. PS3 system, the system will eventually crash and totally screw it up big time, forcing you to most likely get a whole new PS3 altogether. This advice is from my personal experience from using a PS2 Codebreaker to using both normal and active cheat codes. I don't know if it happened to anyone else.
Anyway, that's just me; trying to pass on some helpful, suggestive advice.
