This article is for educational and preservation purposes. The distribution or downloading of copyrighted BIOS files without owning the original hardware is a violation of copyright law.
"psxonpsp660bin" appears to refer to a BIOS/firmware file used by PlayStation emulation toolchains—specifically files with names like "psx0Npsp660.bin" or variants used to emulate the original PlayStation (PS1) BIOS on PSP (PlayStation Portable) or PSP-based emulator ports. These files are BIOS image dumps (binary blobs) required by many PS1 emulators to boot PlayStation games accurately. They are proprietary system firmware images and typically copyrighted by Sony. psxonpsp660bin bios file