If you are deep into the PlayStation 3 modding scene—whether for game modding, asset ripping, debugging, or archival—you have almost certainly run into the humble PKG file. Sony’s official Package format (.pkg) is the standard container for everything from game data and DLC to firmware updates and PSN titles.
Download one of the tools above, take control of your PKG files, and finally extract that encrypted DLC without pulling your hair out. ps3 pkg extractor better