For users with a jailbroken PS4 (running GoldHEN or similar exploits), there are two primary ways to handle PS3 content:

If you are working with PS4-native packages or converted files, several tools are used by the community:

: A port of the PS3's PKGi, this tool allows jailbroken PS4 users to download and install package files directly on the console.

: Historically, Sony offered a Digital Upgrade Programme where owning a PS3 disc allowed you to download a PS4-compatible digital version (PKG) of the same game for a small fee. 3. Creating and Managing PKG Files

: A desktop application for Windows that helps manage, extract, and send PKG files to a PS4 via a local network. 4. Installation Steps for PS4 PKG Files

: This is currently the most "complete" way to play PS3 games on a PS4. Users install a Gentle Linux distribution on their PS4 and run the RPCS3 emulator within that environment.

While the PS4 does not natively support PS3 discs or digital files due to hardware architecture differences, the community has developed workarounds ranging from Linux-based emulation to specific "fake" package (FPKG) creation. 1. Understanding the Core Problem: Architecture