Upd: Psxonpsp660bin Bios File

The is arguably the best BIOS file for PS1 emulation available today. It trades the "nostalgia" of the original PS1 boot sound for raw efficiency and rock-solid stability. If you are setting up a retro gaming handheld or a PC emulator and want a "set it and forget it" experience, this is the file to hunt for.

), this version was specifically enhanced by Sony for its own official PS1 emulator on the PSP. Region-Free psxonpsp660bin bios file