I got need for speed, and the iso file was 190mb, I compressed it to cso, almost miracle like, it was only 22mb. I put it on my mem stick, and my psp refused to open the game option on the XMB. I tried the iso, and the same thing happened. Once the files are removed, my files are accesable once again. Please help. Soryy if there is any bad grammar, I am very tired.