Originally Posted by sl@cker
The Sony BDP-S360. And there definitely is a very noticable difference. on 444, blacks are blacker, whites are hotter. on 422 the blacks are a tiny bit greyer, and whites aren't has hot (as if the white level got turned down). These are both the YCbCr settings. I've checked out the two RGB settings (15-235, 0-255) and they both look noticably worse than the YCbCr settings.
just to clarify there are 4 settings available:
if you'd read the article I linked you'd see that YCbCr 4:4:4, YCbCr 4:2:2 and RGB 16-235 should all basically look the same.
The source is YCbCr 4:2:0.
The 4:x:x describes the subsamples of the picture.
Blacks and whites look better? It's a placebeo effect(Or your TV is handles them differently). The Y's 4 that's the same in both is where all the black to white data is stored and it's the same for all formats (0-255 excepted).
4:4:4 and 4:2:2 describes the chroma sampling substructure of the image contetnt.
You know DVD's are still black and white compatible? The Y in YCrCb is the black and white signal so you can use old 50's TV's. the Cr and Cb is a color matrix overlay. 4:2:2 means that there are 2 CrCb samples for every 4 Y pixels. 4:4:4 means that there are 4 Cr and Cb samples for every 4 Y samples. But the data on the disc is 4:2:0, meaning there is only 1 Cr and Cb sample for every 4 Y pixlels.
YCrCb is essentially a compression algorithim that in one flavor or another has been in use since they added color to B&W broadcasts.
Wikipedia has some decent images to show what I'm talking abouthttp://en.wikipedia.org/wiki/YCrCb
the composite image, the Y data the Cb data and then the Cr data.
If there are differences it's in your TV's interpretation of the signal, but if you calibrated the set based on the player output you'd likely end up in the same place for any pixel format.