If you’re looking for a powerful emulator, check out our recommendations for PlayStation emulators. When the emulator and ROM were returned to you, you might be wondering why it doesn’t work. You see, some additional emulators come with a BIOS file included, but why doesn’t it work for PlayStation emulators. When referring to the PlayStation BIOS file, remember about the emulator activation key. Honestly, the emulator won’t work without it, if you have the whole BIOS, everything is fine. The download home page may have three BIOS files that will work in many PlayStation regions:American, Japanese and European. The US version of SCPH1001 is best suited for emulators. Try loading the BIOS unless your emulator specifically requires you to be states.