I see Maybe it would be best to try to work out the encryption key as that would solve future releases as well. Providing they don't change it which I guess they can't as the PSP wouldn't be able to unencrypt it. If we know the encrypted and decrypted version theye must be some software that can work out how to get from decrypted to encrypted and then do the same with an older release and if it works for that then it is right, right? Brute force decryption to encryption maybe?

Luke