If you are using per-core configs MAKE SURE YOU’VE LOADED THE Mednafen Saturn config file first! Don’t overwrite the default RetroArch config file with a new default BIOS directory location – unless you’re going to put ALL emulator BIOSes in that directory (see 2.C.Set the directory to wherever you saved the two BIOS files in step 2.The first directory option under the Directory section is System/BIOS Dir.Near the bottom of that column is the Directory section.It is in the second column – “Settings” the one with the gears for the icon.

Open RetroArch and enter the Directory location.You will have to set the BIOS location in RetroArch.everything is saved to RetroArch.cfg) then place all BIOS files for all emulators in the same folder (again, typically RetroArch/system folder.)

You can place them where ever if you use per-core configs (I use RetroArch/system/mednafen_saturn_bios).

Typically this is the RetroArch/system folder.

Place them in the appropriate folder under RetroArch.

In some cases, place the file in the same folder the Emulator is located. Unzip the the file (ps2bios.zip) and place whatever BIOS file you need (this has them all) in the same folder the PS2 ROMs are located in.

mpr-17933.bin (md5 hash is: 3240872c70984b6cbfda1586cab68dbe) EmulationStation Desktop Edition (ES-DE) v2.1.0 is now available for download This release brings an optional dark color scheme for the menu system, scraping and viewing of PDF game manuals, aspect ratio settings for the miximage generator, improved system sorting support, and more . Download the BIOS file below and extract the ZIP file.

Download the two BIOS files you need (they are here in a zip file.).

Download psx bios scph5501.bin