What BIOS versions exist?
This is probably kind of an esoteric question, but what BIOS revisions exist for PS2? I notice that some boards with different "v" designations in the scene appear to have the same BIOS code, or at least close enough that modchips didn't need to specifically add support for them. So what's floating around out there? Also, does the main BIOS package contain anything specific to the drive optics (on a stacked EEPROM or similar), or is that all stored in a separate package somewhere?