In the case of PS2 games PKG for PS3, the PKG file contains the PS2 game data, which is then installed on the PS3 console. This allows PS3 owners to play PS2 games on their console, even if the games are no longer available for purchase or download from the PlayStation Store.

Play PS2 Classics on PS3: A Comprehensive Guide to PS2 Games PKG**

If you’re a fan of classic games or just looking for a way to play PS2 games