You can access DLC content if you own the disc version of a game on PS4, but there are important considerations regarding region compatibility and the nature of the DLC.
: The DLC must be from the same region as your disc version of the game. For instance, if you have a European disc, you need to purchase the DLC from the European PlayStation Store. If you buy DLC from a different region, it will not work with your physical copy12.
: Most DLC is digital, meaning that even if it's included with a physical edition, it typically requires downloading. You cannot install only the DLC from a disc; the entire game must be installed from the disc if you switch from a digital to a physical version4.
: If you own a digital version of a game and then buy a physical version that includes DLC, you will need to uninstall the digital copy and install the game from the disc. Your saved data should remain intact, but you'll need to insert the disc every time you want to play4.
: If you've purchased DLC and can't access it, ensure you're logged into the correct PlayStation account and that the DLC is downloaded properly. Sometimes, you may need to restore licenses or check for updates67.
In summary, while owning a disc version allows you to access DLC, ensure both are from the same region and be prepared for potential installation requirements.