RetroArch for Vita has a specific directory structure that must be followed: Directory Path : Place all BIOS files in ux0:data/retroarch/system/ Naming & Case Sensitivity
| Core (System) | Required BIOS Filename | MD5 Checksum (Verify integrity) | | :--- | :--- | :--- | | | scph5500.bin (JP), scph5501.bin (US), scph5502.bin (EU) | 8dd7d5596a0026fe6850d213b0dab203 | | PCSX-ReARMed (Alternate) | scph1001.bin (US PS1) | 924e392ed05558ffdb17b4a68f63acf5 | | Neo Geo (FBNeo) | neogeo.zip (contains: vs-bios.rom, sp-s2.sp1, etc.) | Check inside ZIP | | Genesis Plus GX (Sega CD) | bios_CD_U.bin (US), bios_CD_E.bin (EU), bios_CD_J.bin (JP) | e66fa1b582e33f087fa8106cd225dd90 | | PicoDrive (Sega CD) | us_scd1_9210.bin | acfa6c4c405f7075b0d28ebe4f8e3df9 | | Mednafen PCE Fast (PC Engine CD) | syscard3.pce | 38179df8f4ac8707b4e6ab193cc0c171 | | MAME 2003 Plus | Numerous - best to use a mame2003_plus_libretro.zip pack | N/A | bios files for retroarch ps vita link
Most RetroArch users rely on community-curated BIOS packs hosted on archival platforms. Search for: RetroArch for Vita has a specific directory structure