Hi sorry but i'm not as clever as you guys seem to be and i'd really appreciate it if someone could explain as simply as possible what to do here. Basically, I have some iso copies of games: Grand Theft Auto Vice City Stories and MLB 07 The Show. They are iso files. My PSP firmware is 2.50. I have a 1GB Memory Stick PRO Duo. I hope this is all the info you need. Thanks a whole lot!