Archive.org operates under a (Class 1). If the software requires hardware or media that is no longer manufactured or reasonably available (e.g., CD-ROMs), preservation is legally protected. For many users with modern laptops lacking disc drives, this archive is the only way to play the pure, original PC port.
This is the Holy Grail. For the historian: This is a snapshot of 2005 PC gaming. For the kid who lost their CD key 15 years ago: This is redemption. gta san andreas pc archive.org
Why does this matter?