a lot of the problem with compressing dark scenes is 8 bit already is throwing away a lot of info so the compassion takes a look and figures that since there is

a lot of the problem with compressing dark scenes is 8 bit already is throwing away a lot of info so the compassion takes a look and figures that since there isn't a lot of info, it isn't an important part of the picture and then procedes to gut it. 10 bit color means you start off with a much cleaner image which makes it easier for the compressor to do a good job