If your goal is simply to play classic PS3 titles on a modern retail PS4 without hardware modification risks, you must use Sony's official, cloud-based framework. PlayStation Plus Premium (Cloud Streaming)
To extract and decrypt your PS3 game files. convert ps3 games to ps4 pkg
Choose an output directory where the tool will generate the temporary PS4 project files. If your goal is simply to play classic
Click on > Open and select the .gp4 project file generated in the previous step. Click on > Open and select the
You will need a specific set of tools developed by the modding community. Download the latest versions of the following software:
Your PS3 game must be completely decrypted and unpacked into a standard folder structure before conversion.
Specifically, orbis-pub-gen (part of the official PS4 SDK tools used by the homebrew community) to compile the final package file. Step-by-Step Conversion Process