It's most likely the double sided disc issue. I had a KOTH R1 set that was double sided and it came in with one disc partially unreadable. Had a large scratch on it from shipping. However, mine was Season 6. My Season 5 R1 was undamaged and read in fine. So, it's most likely defective product, of which flippers were. They were defective from the beginning, and good riddance that they died a quick death when people started returning them for the junk they were.