The actual game data package used to install the software onto a PlayStation device or emulator. For God of War 3, this file is massive, often around 35–40 GB , as it was one of the first PS3 exclusives to fully utilize Blu-ray storage capacity.

There was no main menu. It dumped Kratos directly into the level. Jax recognized the texture of the mount—Olympus. But the geometry was wrong. It was jagged, raw. Kratos looked different. His skin was paler, the red tattoo almost black.

You might ask: Why bother with PKG and RAP? Why not just play the disc or an ISO backup?