has automated much of this process, decrypting files on the fly as you rip them. However, if you already have a library of older, encrypted ISO dumps, Test Patcher remains the "Swiss Army knife" for fixing those files without having to re-dump your entire collection. Are you having trouble finding the specific for your game, or would you like a guide on how to set up once your ISO is patched?
Before you start, remember: Do that, and you will have a PS3 that truly belongs to you.