My Psp's currently running on 3.10 OE-A. iv'e taken ridge racr 2's iso re-packed it using UMDGEN, then compressed (seting 9) using PSP ISO Compresser v1.3 to .cso Then i copied the file under PSP(K:iso/ridge racer/ .cso file when trying to excecute the game it tell's me that game data is corrupt? whats wrong?? i haven't used devhook in anyway as i thought you don't need to with 3.10 OE-A??????????