Scph-90001-bios-v18-usa-230.rom0 Instant

" It's a ROM dump."

Most BIOS dumps end in .bin or .rom . This one ends in .rom0 . Why the zero? Scph-90001-bios-v18-usa-230.rom0

The file is a specific BIOS (Basic Input/Output System) image for the PlayStation 2 Slim (Model SCPH-90001) Go to product viewer dialog for this item. " It's a ROM dump

He ran a hex comparison against every known PS2 BIOS dump in existence—the SCPH-10000, the 30001, the 50001, the 70001. None of them contained anything resembling those strings. He checked earlier versions of the 90001 BIOS—v12, v14, v16. Nothing. The file is a specific BIOS (Basic Input/Output

The regional lockout. The BIOS contains region-specific CD key verification logic. A USA BIOS will only boot NTSC-U/C discs (Sony code SCUS ) and will reject Japanese (NTSC-J) or European (PAL) discs unless hardware modded.