Alone, a PKG is useless if it requires a license. This is where RAP files enter the equation.
Once the game successfully boots past the copyright screen, the license is permanently written to your PS3 internal storage. You can safely remove the USB drive; you will not need it to play the game in the future. Troubleshooting Common Errors pkg rap files ps3
Short for "Package," these files are digital installers. When you install a PKG, it extracts game data directly to your PS3's internal hard drive. RAP (The Key): Alone, a PKG is useless if it requires a license
: They hold the digital signature and license encryption keys. more critical component: the RAP file.
However, a PKG file is often just an empty box without the second, more critical component: the RAP file.