Okay, I think I may have resolved my problem?
So I had the disc in my system, and I went over to the storage settings. and oddly, the files for each episode were on my HDD. So I grabbed a thumb drive and downloaded the files to it, and now I'm able to play the game without the disc, and it runs perfectly now. So success?
Thanks for all of the help,and I think I was able to solve the problem... Wooho!