In separate folders (well organized by Leon Dũng)
Of course, each kind of emulator is different, just ensure to check their ‘ readme‘ file for specific instructions I dare say this PS2 BIOS files AiO package made by AppNee is the most comprehensive one available on the whole Internet, and all of which were tested on PCSX2 emulator, working all right! These BIOS files cover all PlayStation 2 models and all regions (including Japan edition, Europe edition, USA edition and China, HK edition), and they are enough to meet the needs of any PS2 emulator players. So here, in this post, AppNee collected and shared (packed them all in one package, and most of which are organized in folders along with PAL/ NTSC system mark) all BIOS files of PlayStation 2 for free download, and most of which are universal for all sorts of PS2 emulators. But without the BIOS file, most game emulators do not work at all. For PlayStation 2 console emulator, PCSX2‘s official website dose not provide any necessary BIOS files. As we all know, any video game console emulator websites are prohibited from publishing or sharing BIOS files.