Hi, i new to psp. i got a psp with fw 1.5 which i then update to 3.03 oe b. I have been d/l a couple of games with iso formatt into my memory stick and have no trouble playing with them. however recently i d/l a game wif iso formatt too, but when i try to open, it got an error msg stating the game cannot be started. I check the file and find all the nesscesary files are there like the SYSDIR, USRDIR, PIC1 and the ICON. but i just cannot play the game. can anyone enlighten me???