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Originally Posted by Robert Harris
Spot checked. I noted no problems.
I'm wondering if people are sitting the proper distance from their screens.
RAH
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Some are likely not. But a compressed version that is transparent to the master source (as the new codecs are claimed to be able to produce) should show no visible compression artifacts from up close as well (display artifacts are another issue). Proper black level and full 24 bit color resolution on the display is important. Otherwise people don't see what the compressionist saw. There might be no visible blocking in dark areas when black is black, but if it's gray it suddenly shows up.
All HD trailers from Apple show artifacts on my 1080p laptop. The black is all wrong and there is no 24 bit resolution on the LCD panel. Banding etc. are all over the place. In addition there are compression artifacts on the trailers since these are not as well compressed as HD discs.