Filename:	Purpose:
---------	--------
scph5500.bin	SCPH-5500 BIOS image.
		Required for Japan-region games.
scph5501.bin	SCPH-5501 BIOS image.
		Required for North America/US-region games.
		Reportedly the same as the SCPH-7003 BIOS image.
scph5502.bin	SCPH-5502 BIOS image.
		Required for Europe-region games.
