Official OPPO BDP-93 Owner's Thread - Page 906 - AVS Forum
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post #27151 of 27153 Old Today, 01:01 PM
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Originally Posted by wmcclain View Post
The choice is there to accommodate possible flaws in the way the display handles color spaces. If your video looks good to you, then the selection won't matter.

If you'd like to test the alternatives yourself, Spears & Munsil have an article showing how to do it with their calibration disc.

-Bill
Thanks Bill. I have the S&M disc - will check it out. The PQ looks terrific BTW - just wondering what the differences are and why. I have flicked between the different choices and can’t see any real difference in PQ - although I did think that the red jacket Aaron Cross wears at the beginning of The Bourne Legacy looked more 'red' with RGB and a little 'orangey red' with the other choices, but that could just be me.
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post #27152 of 27153 Old Today, 01:12 PM
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Originally Posted by kbarnes701 View Post
Thanks Bill. I have the S&M disc - will check it out. The PQ looks terrific BTW - just wondering what the differences are and why. I have flicked between the different choices and can’t see any real difference in PQ - although I did think that the red jacket Aaron Cross wears at the beginning of The Bourne Legacy looked more 'red' with RGB and a little 'orangey red' with the other choices, but that could just be me.
"Why" is fading into the mists of time. It had to do with conserving bandwidth in the mid-20th century.

Here is a background article: http://en.wikipedia.org/wiki/Chroma_subsampling

The BDP-83 FAQ had this old entry which may still be applicable: What if I want to set the color space manually?

-Bill

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post #27153 of 27153 Old Today, 01:17 PM
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Hi guys. I wonder if someone could give me a heads-up with this question: I have an Oppo 93 and it feeds an Epson 5030 PJ via a Denon X5200W. In the Oppo settings I can choose 4:4:4 or 4:4:2 or RGB to send to the Epson. Does it matter which I choose, and why? And which is best? I am currently using RGB and all seems to be OK, but this is something I have never thought about until recently when someone asked me "why RGB?" and I realised I had no real idea. Thanks.

I looked in the FAQ linked on P1 of the thread and it says to use 4:4:4 but doesn't explain why or what this setting does that the others don't
You might wish to ask this in the dedicated thread for your PJ model. A properly set up display with no processing bugs will look the same regardless. Unfortunately that type animal is too rare in the wild. It may also depend on what other settings you have enabled in the display. IOW, one type of motion processing might show color space errors more than another - which is why its best to consult the experts on that particular display.
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