Hi, I'm new to PSP emulation and plan on getting a PSP. I have a few questions that I hope can be answered. In advance those who do answer, thank you very much. 1. What is the best custom firmware to use? I've heard Dark Alex's firmware and then I hear Devhook can be used. 2. Can I rollback or recover my PSP to the original firmware once I install the custom firmware? 3. Is there a compatibility list of the PS1 games that can run? 4. Can I use a PS1 ISO file I made? 5. How are all the buttons mapped? (L2 R2 etc.) Again thanks in advance to anyone who answers my questions.