This article is for educational and informational purposes only. The author does not condone piracy or unauthorized distribution of copyrighted BIOS files.
The Essential Guide to PS1 BIOS Files: psxonpsp660.bin, scph1001.bin, and More If you are diving into PlayStation 1 (PSX) Go to product viewer dialog for this item.
| Game Title | 1001 | 5501 | 7001 | 101 | psxonpsp660 | |----------------------------|-------|-------|-------|-------|-------------| | Final Fantasy VII (NTSC) | Minor glitches | OK | OK | N/A (region mismatch) | FMV stutter | | Metal Gear Solid (NTSC) | Freezes on codec | OK | OK | N/A | Audio desync | | Crash Bandicoot 3 (NTSC) | Glitchy menus | OK | OK | N/A | Works | | Spyro 3 (PAL) | N/A | N/A | N/A | OK | Works but 60Hz bug | | Wipeout 2097 (PAL) | N/A | N/A | N/A | OK | OK | | Xenogears (NTSC) | OK | OK | OK | N/A | Freezes at desert | | Chrono Cross (NTSC) | Slowdown | OK | OK | N/A | Menu corruption | This article is for educational and informational purposes
Once you have securely acquired your chosen BIOS file, you need to place it where your emulator can find it. DuckStation Configuration Open DuckStation and navigate to > BIOS . Look at the BIOS Directory path.
A revised NTSC-U/C BIOS used in later, more stable models. | Game Title | 1001 | 5501 |
Prepared for internal technical documentation and emulation accuracy research. Do not redistribute BIOS files.
Without a proper BIOS file, many emulators can still run some games using high-level emulation (HLE), but you will encounter: A revised NTSC-U/C BIOS used in later, more stable models
Copy your BIOS files directly into the root of the system folder.
Because the BIOS code remains the intellectual property of Sony Interactive Entertainment, downloading these files from third-party websites violates copyright law. The Legal Route: Dumping Your Own BIOS
: If an emulator specifically asks for scph1001.bin , you can often rename a copy of psxonpsp660.bin to that name to force the system to use the better PSP-derived version. Hardware-Specific BIOS Breakdown