If you are looking for archives of older games, stick to reputable community-driven projects like The Internet Archive (archive.org) , which often hosts "Redump" sets aimed at historical preservation rather than ad-revenue. Top PS2 Games Worth Replaying
If you're setting up your library, these essentials are must-haves:
Traditionally, PS2 games are stored as or BIN/CUE files (disc images). However, the PlayStation 3 uses the .pkg (package) format for digital content.