Now you can find the same 4K video from few GBs to a hundred GBs, and I am wondering: where to stop? With music there is a similar phenomenon by which after a certain bitrate it becomes an esoteric art to detect improvements. So, what is your “very good enough” bitrate for 4K videos?
This is a bit open ended depending on type of film, screen watching it on, codec etc.
Personally if I’m watching on my 65inch OLED. I can be happy with 30mbps HEVC. However if it’s a cartoon style then 15mbps is fine. On the other hand if it’s a dark film, then I absolutely want the 4k bluray rip, compression in dark areas on an oled can be really noticeable.
I do however have a gigabit connection and buckets of storage so I tend to just get the highest bitrate I can.