Once the PKG finishes installing, you usually won't be able to play the game immediately. The console will pop up a message saying "Renew License" or "This content cannot be used."
Installing PKG (package) files on a PlayStation 3 is the standard method for installing digital games, homebrew applications, and game updates on a console running custom firmware (CFW) or HEN (Homebrew ENabler). Since PKG files can come from various sources, "verified" installation ensures the file is not corrupt and will not brick your console. how to install pkg games on ps3 verified