if you already have the downloaded content there is no need for you to buy the new disk. but hopefully you bought it with the account you are using because that account has the rights to the dl. you can save for progress to the harddrive and once you delete the dl you can keep the saved game but not have it taking so much space like the full download does. if you have the small memory card you can save your progress there and just delete all the stuff you have on your hd to make room just make sure you save atleast one time each of the stories to it