: The other files are standard BIOS versions from various physical PlayStation models: scph1001.bin : The original North American (NTSC-U) BIOS. scph5501.bin
: A later revision of the North American BIOS, often cited for improved stability. scph7001.bin scph101.bin : The other files are standard BIOS versions
When a gamer today hunts down these five files, they are essentially reconstructing the soul of the PlayStation. They are gathering the raw materials needed to trick a modern PC or smartphone into believing it is a grey box from 1994. They are gathering the raw materials needed to
| Emulator | Supported BIOS Files | Notes | |----------|----------------------|-------| | | All five; prefers psxonpsp660.bin | Auto-detects region; can use multiple BIOS files per region | | ePSXe | SCPH1001, SCPH5501, SCPH7001, SCPH101 | Does not officially support psxonpsp660.bin but can use it renamed | | RetroArch (PCSX-ReARMed) | All five | Strongly recommends psxonpsp660.bin for handhelds (PSP/Vita) | | PCSX-Reloaded | SCPH1001, SCPH5501, SCPH7001 | Older codebase; no PSP BIOS support | | Xebra | SCPH1001 only | Extreme accuracy, but picky | Forcing the wrong region will usually result in
: Match region to game. A Japanese game (NTSC-J) demands a Japanese BIOS (e.g., scph5500.bin ). Forcing the wrong region will usually result in a black screen or boot loop.