Use this method for small games (under 4GB) and Homebrew.
Most PKG games require a Rap file.
The PlayStation 3, a console that defined a generation, has seen a remarkable second life thanks to the homebrew community. For many users, the holy grail is running backup games without a physical disc. Two main paths exist: for older consoles, and HEN (Homebrew ENabler) for SuperSlim models and later Slims. ps3 hen games pkg link