ok just done some reading up for you, all your games obviously go in the games folder, if you want to keep it tidy you can out each game in seperate folders in there. As for the bios folder all you want to make sure is you have a psone bios in there and that it is named right. As for lightgun games i believe they work but not with a lightgun, nor the wiimote, you would be stuck with just using a gamepad. Then again with todays tvs i doubt you would find any telly whihc would support psone lightgun games