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...equipment supports CHP (Constant Height Projection) / CHD (Constant Height Display). For a better description see this tutorial http://www.highdefdigest.com/n

...be refereed to as Cinema Widescreen, Cinema Display, Cinema 21:9, or 21.9 Display in marketing material. ...deos, and they can sometimes also be incorrect described (rounded) as 2.40:1 or 2.40 movies, like for some Blu-ray Disc film releases which have 1920×8