Originally Posted by Ron Jones
Given that 1080p is overly compressed using h.264 encoding at 5.8 Mbps (blu-rays can go up to 40+ Mbps using h.264 encoding for 1080p plus audio), how bad do you think 4K is going to be at only 5.8 Mbps? Redray is talking about 20 Mbps using a their more advanced (wavelet?) compression scheme for 4K and it appears Sony is going to use h.264, or perhaps h.265/HEVC, at data rates in the range of blu-rays or a little higher for their 4K download service.
The RedRay encoders premium setting is 18Mb/s. Cinema quality setting is 36Mb/s. It also has a setting for 9Mb/s, which supposedly looks OK on smaller screens.
4K sources compress easier and can be compressed harder than 2K sources with less artefacts.
But 5.8Mb/s I would say is pushing it. Maybe good for a mobile or Pad.
I think we will see a lot of material with the 4K Tag, which is a sign of content providers that are more interested in throwing themselves into a "4K" hype and "diluting" 4K, than really caring about real 4K and quality.
Nanotech hasn't yet announced what kind of 4K sources they are going to get their 4K material from, but seeing the content partners they have announced, my hopes are really low for any chance they are going to release any real 4K.