For a step-by-step visual on preparing your USB and using tools like PSN Patch: Installing PKGs and RAP Files Using PSN Patch So That's Gaming YouTube• Apr 12, 2021 Using PKG and RAP Files on RPCS3 (PC Emulator)
To use games and applications on a modified PlayStation 3 (CFW or HEN), you generally deal with two essential file types: (the game content) and (the license key). 1. PKG Files (The Package) Ps3 Pkg And Rap Files