Thread:Minarie/@comment-60.50.119.90-20130807015726/@comment-3441860-20130807061459

Well the fact that your using prometheus (PRO) means your using CFW (Custom Firmware). Normally original games should still work for PRO but if your encountering errors, I suggest that you download the patched iso version of the demo. It should be somewhere on pspiso.com. Good luck!