Portable — Scph70012biosv12usa200bin
Verify that your emulator's settings menu points directly to the folder containing the file, and ensure the file extension reads exactly .bin (not .bin.exe or .txt ).
Assuming you have legally dumped your own BIOS, here is how to configure it for portable use. scph70012biosv12usa200bin portable
; using a PAL (European) BIOS would limit frame rates to 50 FPS. File Format Verify that your emulator's settings menu points directly