I have been reading this and other forums for a week now, trying everything that gets suggested. There are three main problems; 1. I can only get one ISO/CSO (of the seven I have) to play on my PSP. 2. When browsing the MemoryStick via the game menu, there are at least 200 corrupt data files. 3. Although I have 6 of the 7 .cso files loaded to my MemoryStck, I can only see 2 of them in the list to even try to play. I am running 3.10 OE-A' I have a 4Mb Memory Stick I have "Tekken: Dark Ressurection" in the UMD drive I have tried with and without UMD enabled/disabled I have tried evry combination and permutation of the recovery menu to get things to work - no change. I have tried formatting the card, and reformatting the card - nothing makes a difference. What am I missing? Why all the corrupt data files when these are supposedly turned off in the recovery menu? Why does one game work, and 6 others don't? I can't be this hard!!!!!!!!!!!!