Blu-ray: RGB vs YPbPr

[Jonathan Grynspan]

Hi folks. I've been playing with the settings on my BDP trying to get rid of a green/violet line that appears when overscanning is turned off on my TV. Having given up on that (looks like it's the player that's causing it, not the TV or cable) I am now left with another question: which ought I to prefer as the output format for my player, RGB or YPbPr? I know the difference and I know that YPbPr is the native colour format for Blu Ray discs, but when I set the player to RGB output the video becomes much more saturated (in a good way--YPbPr always seemed washed out) and more detail is apparent in the blacks.

Should I chalk this up to the player doing a better YPbPr-to-RGB conversion than the TV? Perhaps something else? If I'm looking for the "authentic" movie experience, should I stick with YPbPr? Any other thoughts on the matter? Bueller?

[RocShemp]

Originally Posted by Jonathan Grynspan

Hi folks. I've been playing with the settings on my BDP trying to get rid of a green/violet line that appears when overscanning is turned off on my TV. Having given up on that (looks like it's the player that's causing it, not the TV or cable) I am now left with another question: which ought I to prefer as the output format for my player, RGB or YPbPr? I know the difference and I know that YPbPr is the native colour format for Blu Ray discs, but when I set the player to RGB output the video becomes much more saturated (in a good way--YPbPr always seemed washed out) and more detail is apparent in the blacks.

Should I chalk this up to the player doing a better YPbPr-to-RGB conversion than the TV? Perhaps something else? If I'm looking for the "authentic" movie experience, should I stick with YPbPr? Any other thoughts on the matter? Bueller?

It sounds like your BD player outputs RGB at full range rather than limited range. Although the saturation may seem "better", you'll noticed it's actually somewhat oversaturated and your blacks may also be crushed. This is because you need to calibrate your set for whichever output style you choose from your BD player.

[Jonathan Grynspan]

Originally Posted by RocShemp

It sounds like your BD player outputs RGB at full range rather than limited range. Although the saturation may seem "better", you'll noticed it's actually somewhat oversaturated and your blacks may also be crushed. This is because you need to calibrate your set for whichever output style you choose from your BD player.

The player has the option for RGB 0-255 and RGB 16-235, and the TV supports both. Blacks don't appear crushed, but as for saturation it's hard to say that YPbPr is more accurate because it's so damn flat. So I'm left in a very confused place.

[Deciazulado]

As RocShemp said, you have to calibrate the TV for the setting you pick.

If you calibrate for 16-235 it should look the same as if you calibrated for 0-255

[ImTurningBlue]

What kind of blu-ray player,tv do you have?

[Jonathan Grynspan]

Originally Posted by ImTurningBlue

What kind of blu-ray player,tv do you have?

Player: Sony BDP-S350
TV: LG 32LG20

[ImTurningBlue]

There both pretty good i say play around with the settings and see what you like best,its hard to judge unless you actually can actually see the picture in person

[Jonathan Grynspan]

Originally Posted by ImTurningBlue

There both pretty good i say play around with the settings and see what you like best,its hard to judge unless you actually can actually see the picture in person

I know what you mean. :P I'm very satisfied with both devices, but it's hard to navigate the poorly-translated English manuals to figure out the more obscure settings. Sony is okay, but LG really needs some more fluent English translators on staff. So there's a lot of features and settings I just don't dare to touch because it's not clear what they do.

[crackinhedz]

HDMI Enhanced Black Levels, xvYCC and RGB

[Jonathan Grynspan]

Originally Posted by crackinhedz

HDMI Enhanced Black Levels, xvYCC and RGB

I'm aware of the various technologies and how they relate to each other. Helpful to know the mastering details of Blu Ray though!

[crackinhedz]

Originally Posted by Jonathan Grynspan

I'm aware of the various technologies and how they relate to each other.

yur not the only one who reads these threads.

[Jonathan Grynspan]

Originally Posted by crackinhedz

yur not the only one who reads these threads.

Didn't say I was! (Wasn't trying to be rude or anything--sorry if it came across that way.)

[crackinhedz]

no problemo.

The more info for everyone the better.

[crackinhedz]

Originally Posted by crackinhedz

HDMI Enhanced Black Levels, xvYCC and RGB

"YCbCr has a native data range of 16-235 (though it technically can do 0-255, but more on that later). The difference? Well, while you would think that RGB and its 0-255 would have a greater amount of color, the discs we all watch are mastered at the YCbCr 16-235 levels. In keeping with our definition of accuracy, the best thing you can do is match the original - this avoids interpolation and possible distortion of the original color and image."