Not all PS3 games are compatible with this conversion method.
If your goal is simply to play the games on your PS4 without technical risks, use these official options: convert ps3 games to ps4 pkg
Unlike converting a video file from MP4 to AVI, you cannot simply repackage a PS3 game (ISO or Folder format) into a PS4 PKG file and expect it to run. The two systems speak different languages: Not all PS3 games are compatible with this conversion method
Tools like "PS3ToPS4" or community-maintained pkg builders . Step-by-Step Tutorial: Convert PS3 Games to PS4 PKG 1. Prepare the PS3 Game Step-by-Step Tutorial: Convert PS3 Games to PS4 PKG 1
This has led to a massive demand for a direct conversion tool: a magic piece of software that takes a PS3_GAME folder or an ISO file and spits out a PKG file ready to install on a jailbroken PS4.
To extract and decrypt your PS3 game files.
On a , you can install an unofficial PS3 emulator like RPCS3 (Linux on PS4) or PS3_Emu (very experimental).