I have only just started using ISO's (well understood it) and I put metal gear solid portable ops ISO's into my ISO folder and it appears fine on ma mem stick in my games folder, even has the little tune in the background if i leave the cursor on it. Anyway after I press O to start the game the psp logo comes up , as normal, but then the screen just goes black and fails to load up the game. I dont know if i have missed something out or if its a prob with the game. Any help i wud b greatful.. like if any1 had this prob as well and knows how to fix it. Peace.