Well, yes and no. Most HD encoding does use an improved* color space (BT.709 vs. BT.601) which can theoretically offer a richer and more accurate palette than SD video. I know from making BDs and DVDs of my own HD footage that rich colors, reds in particular, come through much more strongly and crisply on Blu-ray, all other things being equal (player, display, etc). The higher resolution and better compression rates can also improve color separation. It may be true technically (that is to say, numerically) that none of these things affect contrast, but it's easy to understand why they can appear to offer better contrast to the naked eye. But you're right, of course, that this is largely dependent on the display: it doesn't matter if your source video uses BT.709 if your display only uses BT.601. And that's not even getting into proper calibration.David Mackenzie wrote:There's no reason why the contrast of Blu-ray Disc should be better than DVD.
*Granted, it's not uncontroversial to say that BT.709 is an improvement. It is certainly compromised in many ways.
