As things stand, 4K Blu-ray is currently the best way for you to watch your favorite shows and movies at home. You might not realize that 4K discs can either be 66 GB or 100 GB, and the smaller disc is just dual-layer. What's strangest of all is that it doesn't happen to all 4K discs. I've been dealing with this issue for years, and I still haven't run out and gotten a new 4K player. It's a bummer to see people get into these hobby only to be met with the wall of being unable to comfortably watch triple-layer 4K discs.