Bios Retroarch — Sega Saturn

Unlike the SNES or Genesis, where emulators can get away with high-level emulation of the cartridge header, the Saturn requires a precise, region-specific BIOS dump to boot discs or disc images. This article will walk you through everything you need to know about the Sega Saturn BIOS in RetroArch: why you need it, which files you require, where to put them, and how to fix common errors.

: sega_100.bin (Japan v1.00), sega_101.bin (Japan v1.01), mpr-18811-mx.ic1 (US v1.01a) sega saturn bios retroarch