manufacturers including Epson and Sony are getting behind a new metric for measuring color reproduction among projectors. Since the contrast ratio is based on just pure white and pure black, a high value does not guarantee that the colors produced by a projector are "punchy." This new "Color Brightness" value will measure a brightness value for each of red, green and blue primary colors used in 3LCD projectors. If a projector produces same brightness for red, green, blue and white, then you know it's able to produce saturated colors over the spectrum. No word on when to expect this metric to be adopted, as it still has to be submitted to the requisite standards bodies.