I just thought of DLC, games like Fallout: New Vegas, The Walking Dead (Telltale), and Minecraft Dungeons have a disc with all of its DLC on it. Maybe that can be added to?
Some of the add-on requests are starting to get into the weeds here. Regionalization is going to add difficulty to the base request, as some games are physical in one region, digital in another, both in another. Not that it isn't a good request, or that it would be useful, but, to start adding on things like the New Vegas and Red Dead Redemption "GOTY" Editions that had a second DLC disc is going to get even more complicated...