hello everyone, my uncle just got a new psp 3000 version 6.20. We put games in his memory stick's ISO folder. We tried everything but the games still won't work. Do you know of a way to play games on psp 3000? I saw something on the internet and it said that we can't any ISO and CSO games in the psp 3000 only UMDs.It also said that it can't be hacked or changed into custom firmware. Is there already a way to hack the PSP 3000 or change it into a custom firmware? Thanks for your help.