For those with a jailbroken PS4, there is a technical method to run PS3 games using the via a Linux payload.
However, the "PS3 to PS4 PKG" community focuses on several workarounds, ranging from official upgrades to advanced emulation on jailbroken consoles. 1. Official PS3 to PS4 Digital Upgrade Programme
Sony previously offered a way to "convert" specific games from PS3 to PS4. This wasn't a file conversion, but a digital license upgrade. ps3 to ps4 pkg top
: Expect significant lag and bugs; the PS4 hardware struggles to emulate the complex Cell architecture 1:1. 3. PS3 PKG Tools & Backup Management
: You must boot your PS4 into a Linux environment (like Gentle Linux) using a USB loader. For those with a jailbroken PS4, there is
: This program was limited to early PS4 launch titles and most of these vouchers have now expired. 2. Emulating PS3 on PS4 (Jailbroken Consoles)
: Users with a PS3 disc version of a specific game (like Assassin's Creed IV Black Flag ) could redeem a code in the PlayStation Store to buy the digital PS4 version at a heavily discounted price. Official PS3 to PS4 Digital Upgrade Programme Sony
: You'll need the latest Linux version of the RPCS3 emulator , the PS3 system software, and your game's PKG and RAP (license) files .