In the world of emulation (using software like DuckStation, Beetle PSX, or PCSX Repped), the scph5500.bin is highly sought after for several reasons:
Why is the scph5500 preferred over older BIOS files like scph1000 or scph1001 ? The answer lies in software patches and API maturity. playstation scph5500 v30 japan bios scph5500bin top
If you want, I can: