Your console must be modified to run "unsigned" code.
To download and play PS2 games as PKG files on your PS3, you generally need a modded console (CFW or HEN) to bypass official licensing Download Ps2 Pkg Games For Ps3
A PKG file is a standard installation package used by the PS3 for digital software. For PS2 games, this format is essential because it allows the console's internal software emulator, , to treat a legacy ISO as a modern digital purchase. Unlike running a raw ISO, which often requires full Custom Firmware (CFW), converting a game into a PKG is the primary way for users on PS3HEN —a more accessible exploit for later console models—to play PS2 titles. The Conversion Process: From ISO to PKG Your console must be modified to run "unsigned" code