BIOSES
The three BIOS files needed by Mednafen (and RetroArch/OpenEmu, if using Mednafen as core).
Models:
- scph5500 — 3.0 NTSC-J (1996-09-09)
- scph5501 — 3.0 NTSC-U/C (1996-11-18)
- scph5502 — 3.0 PAL (1997-01-06)
Somehow, scph5501 seems to be missing from many online PSX BIOS collections.