This is the size of my media collection! Why do you think I even mentioned it.
It varies from SD content all the way up to 4k and even one or two in 8k
I don't have 80TB worth of images, documents and or gaming do I? That's a different situation. If I added everything up it will easily be over...
No such thing as a 4k DVD.
The only time when there is a loss in quality is when you encode it to a lower size.
Using make mkv on its own results in a direct 1:1 copy of the movie. Also known as a remux
Just be mindful on the storage capacity if you decide to so this. I'm now on 80 plus TB...