Demul Mpr- 21931. Ic501 !exclusive! -

Often, BIOS packs use different naming conventions. You can manually rename your existing files based on their values to match what DEmul requires:

If you’ve been trying to get (the Sega Dreamcast, NAOMI, and Atomiswave emulator) running smoothly, you might have run into a cryptic file error: demul mpr- 21931. ic501

: If you have a file named 1_01d_01.bin or dc101d_us.bin , you must rename it to mpr-21931.ic501 and place it inside the dc.zip archive for the emulator to recognize it . Often, BIOS packs use different naming conventions