On jailbroken PS3s, digital games (including PSN releases of God of War III ) often come as a PKG you install, plus a RAP file placed in /dev_hdd0/exdata/ to unlock it.
: The gold standard for PKG and RAP files. Search for "God of War III" to see if a digital version exists for your region. god of war 3 espanol latino ps3 pkg rap link
You can find the game files on community-trusted preservation sites. Search for these terms on your preferred browser: On jailbroken PS3s, digital games (including PSN releases