no software that natively converts a PS3 PKG into a playable PS4 PKG due to fundamental differences in system architecture. The Technical Reality Architectural Incompatibility: The PS3 uses a complex Cell processor (PowerPC architecture), while the PS4 uses an x86-based AMD CPU
Use a tool (like PS3ToPS4PKG ) to repackage the game, often creating a new .pkg file configured for the PS4 environment. ps3 to ps4 pkg converter verified