This cycle repeats endlessly. There is no permanent, stable link for PS2 BIOS files on the Internet Archive because it is legally volatile. It is a game of cat and mouse that the archivists usually lose.
The is the digital equivalent of the Holy Grail for emulation fans. It represents a radical idea: that corporate copyright should not stand in the way of gaming history. internet archive playstation 2 bios link
If you do manage to find a working link on the Archive, you are often faced with a secondary problem: Quality. This cycle repeats endlessly