Sony implemented a defense-in-depth approach for PKG handling:
: PKG files can be installed directly through the Package Manager on the PS3 XMB. ps3 pkg archive best
Beyond retail games, the "best" archives for utility and custom firmware enhancements include: power on your CFW PS3
Now, power on your CFW PS3, fire up MultiMAN, and enjoy the golden era of Sony gaming. fire up MultiMAN