DAT file for PS2 BIOSes from Redump and if your file valid - place it in 'bios' folder and select in 'Config' -> 'Plugin/BIOS Selector'. BIN file, which you got from PS2 BIOS dump. It provides a fully versioned schema and API defined in its specification, and follows Stone definitions for platform identifiers and ROM content-types.
PC Engine HuCards PC Engine CD-ROM^2 Discs TurboGrafx-16 HuCards TurboGrafx-CD Discs PC Engine Super CD-ROM^2 Discs TurboDuo Discs Hell, I even have the PC-FX games running! … For the life of me I cannot get the PC Engine Arcade CD-ROM^2 Discs to load though. I’ve got (almost) all the NEC systems and formats working to absolute perfection, and with the proper BIOS boot screens no less.
