PKG files are "package" files used by the PS3 to install software, updates, and downloadable content (DLC). When you buy a map pack or a new character officially, the console downloads a PKG file and installs it to the internal HDD.
Many modern fan-made patches and "Complete Edition" mods require specific DLC versions to function correctly. Safety and Best Practices ps3 dlc pkg files updated
Drop your .pkg files into the root directory of your USB drive. PKG files are "package" files used by the