"There is much pleasure to be gained from useless knowledge." --Bertrand Russel (attributed)
Since I was pretty far along with the game when I got the disc, I used the small memory card that came with Animal Crossing to make a transfer town. (Hyrule with Link as the player, so it would play nice with the Project Hyrule code system) I would use the disc with that town, create the items I wanted and then drop them outside. Then I would take the train from my "regular" town, pick up the items, and take the train back. I never ran into any problems but again, I only used the disc to create items in a dummy town and then went and retrieved them from my real game.