Top row is all DVD. Row and a half with 150 or so 3D Blu-rays. Only have about 100 or so 4K movies. Balthazar2k4 has a lot more 4K than I.
I do re-encode all my movies and TV shows to decrease the size. For the most part, the settings I use, I can not tell the difference between my encoding and the original. In some cases, I feel my version looks better then the source. I’m not a fan of a large amount of film grain and I will degrain (MDegrain2 is amazing) a movie/show if it is excessive. Case in point, the new Bladerunner Final Cut 4K, is a grainy soup mess. My encoding looks so much better, the wife was amazed in the improvement.