8k players

https://www.google.com.cy/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjpkJzuuqftAhWK66QKHS68BvsQFjABegQIARAC&url=https://www.homecinemachoice.com/content/no-8k-upgrade-blu-ray-admits-8k-association#:~:text=News&text=The%20chances%20of%20an%208K,adopt%208K%20for%20physical%20media.&usg=AOvVaw2sitaeU3XavUTnnny5ZYBj

used Google and got in a second

 

Or try DuckDuckGo (aka Quack Quack Go)!

 

Even if they implemented today's best theoretical compression, a feature-length movie wouldn't come close to fitting. Multiple disc sets and/or double-sided discs have been tried before.

8K chews up potentially 4x the bandwidth of 4K and lossy compression to make it fit would certainly destroy any pixel advantage.

It is far too early to be worried about 8K when 4K content is as hard as it is to get one's hands on.