Sorry if this is a really stupid question, but do the Dual Shock 2 controllers have any functional difference from a Dual Shock (1) on PS1 games (played on either PS1 or PS2)? I ask because I purchased quite a few of these, and now I'm wondering why the hell I bought them. Many are still sealed. I only have 2 PS2/Dual Shock 2 controllers, but figure if they are the same if using with PS1 games, I might as well save space and use the Dual Shock 2's for both systems and get rid of all these Dual Shock (1) controllers I have, as well as pick up a few more Dual Shock 2's.. I just don't want like 5-6 DS's and 5-6 DS2's sitting around when I could just have 5-6 DS2's and that's it..