You can find a verified, safe collection on the Internet Archive.
: Move the files into the bios folder of your preferred emulator (like DuckStation , RetroArch , or ePSXe ). ps1 bios archiveorg link
Search for "PS1 BIOS Collection" or "Sony PlayStation BIOS Pack" . You can find a verified, safe collection on
Note: SCPH-5501 is also widely considered one of the most stable and compatible BIOS versions for North American emulation. Why Use Archive.org for PS1 BIOS Files? You can find a verified