By late 1996, Sony introduced the exclusively for the Japanese market.
The SCPH-5500 (v3.0 Japan) is a specific Japanese PlayStation revision whose BIOS image (commonly referenced as SCPH5500.bin) matters for authentic emulation and preservation. Respect copyright: dump from your own hardware and use BIOS images responsibly. Playstation Scph-5500 -v3.0 Japan- Bios Scph5500.bin -Extra