XnapperHowever, I can offer helpful context and legal guidance:
Yet, we must emphasize legal and ethical preservation. These files are often tampered with, contain malware, and disrespect the intellectual property of the engineers who built the PS2. Instead, invest in a used Japanese SCPH-90000 console from a second-hand shop or auction site. Extract your own BIOS. Become part of the preservation community. Ps2 Bios Japan Scph-90000 Download
Copyright does not expire because a product is discontinued. Sony still legally owns the BIOS code. They have occasionally sent takedown notices to websites hosting PS2 BIOS files. However, I can offer helpful context and legal
You will need a way to run custom software, such as FreeMcBoot (FMCB) or Fortuna (since SCPH-90000 models often have BIOS versions 2.30, which are incompatible with standard FMCB). Extract your own BIOS
: You must be able to run homebrew software on your console. For an SCPH-90000, standard "FreeMcBoot" memory cards usually do not work if the console's "Date Code" is 8C or later. Instead, use a tool like FreeDVDBoot to launch homebrew from a DVD-R.