Regarding 12 bit colour depth, this is interesting news.
http://www.hdtvtest.co.uk/news/new-12-bit-deep-colour-encoding-tech-announced-for-4k-blu-ray-201401243602.htm
“In comparison to other proposed content delivery methods that require large amounts of valuable bandwidth or supplementary streams to deliver 12-bit color information, DCE is an extremely efficient process requiring very little additional bandwidth or processing power to deliver true 12-bit equivalent color to compatible displays,” said the company in its press release".
I think the BDA would have to approve it and they are so slow at doing things like that, hopefully it's a sign we'll get something like this on 4K blu ray, the fact it doe not require lots of extra bandwidth can only be a good thing, goodbye colour banding. (unless in the source )
http://www.hdtvtest.co.uk/news/new-12-bit-deep-colour-encoding-tech-announced-for-4k-blu-ray-201401243602.htm
“In comparison to other proposed content delivery methods that require large amounts of valuable bandwidth or supplementary streams to deliver 12-bit color information, DCE is an extremely efficient process requiring very little additional bandwidth or processing power to deliver true 12-bit equivalent color to compatible displays,” said the company in its press release".
I think the BDA would have to approve it and they are so slow at doing things like that, hopefully it's a sign we'll get something like this on 4K blu ray, the fact it doe not require lots of extra bandwidth can only be a good thing, goodbye colour banding. (unless in the source )