Samsung 4K UHD Blu-ray Player UBD-K8500

[eddievanhalen]

Originally Posted by ray0414

Keep it off

Why do you keep Deep Colour off? I have it set to Auto. Is there something wrong with Deep Colour?

[ray0414]

Originally Posted by eddievanhalen

Why do you keep Deep Colour off? I have it set to Auto. Is there something wrong with Deep Colour?

Not meant for uhd. It causes more harm than good.

[movielover1069]

Originally Posted by ray0414

Not meant for uhd. It causes more harm than good.

Then what is it doing on a UHD player if it causes more harm than good? I have it set to auto and have had no problems whatsoever.

[elwaylite]

Originally Posted by movielover1069

Then what is it doing on a UHD player if it causes more harm than good? I have it set to auto and have had no problems whatsoever.

LOL, it has been on Blu-ray players forever and been known to do nothing, or more harm than good. Not new...

[movielover1069]

Originally Posted by elwaylite

LOL, it has been on Blu-ray players forever and been known to do nothing, or more harm than good. Not new...

Like I said, so far I've had no problems with it whatsoever. This is my first Samsung Blu-ray player by the way. Tell me what kind of harm it causes if you don't mind. I'm very curious.

[FilmFreakosaurus]

Originally Posted by movielover1069

Like I said, so far I've had no problems with it whatsoever. This is my first Samsung Blu-ray player by the way. Tell me what kind of harm it causes if you don't mind. I'm very curious.

On some equipment it will cause an unnecessary upconversion to 12 bit that can cause video anomalies not in the original signal.

It's an old hold over from the Blu-ray days... it does nothing, but potential harm.

[movielover1069]

Originally Posted by Storm5m

I can confirm that I now see the HDR tag on the Amazon content that is HDR enabled. The app was updated on 5/3. Netflix on the other hand hasn't been updated on either the k8500 or my Samsung TV. Netflix informed that to enable HDR the app must use SDK 4.2 or higher. Both Netflix applications, tv and uhd player, are compiled with SDK 4.1.5

Where do you see the HDR tag on the Amazon app on the Samsung player? I just checked and the only tag I see is UHD.

[elwaylite]

Originally Posted by FilmFreakosaurus

On some equipment it will cause an unnecessary upconversion to 12 bit that can cause video anomalies not in the original signal.

It's an old hold over from the Blu-ray days... it does nothing, but potential harm.

Yeah. I mean you are taking 8bit depth blu-ray color and outputting it at 12 bit for no reason, and then with UHD you are taking a quality 10bit depth color and outputting 12 bit.

It can cause handshake issue and drop outs as well. IMO it is unnecessary to even leave on auto, just turn it off. If it isn't causing problems in your chain, fine, but cutting it to off is reliable for most.

With SDR blu-ray the output would normally be 1080p/24 ycbcr 444 8 bit, with DC on it would be 12 bit. For HDR it would normally be 4k/24 BT2020 ycbcr 10 bit, with DC on it goes to 12 bit.

UHD is natively 4K/24 BT2020 10 bit, no need to convert it to 12 bit inside a player that may be mucking with the image. Output it at it's native format.

[Storm5m]

Originally Posted by movielover1069

Where do you see the HDR tag on the Amazon app on the Samsung player? I just checked and the only tag I see is UHD.

Within the Amazon App. When I select an HDR title and select an episode to view details, HDR appears. When I play that episode it ramps up my backlight so I know it is processing the HDR signal.

[movielover1069]

Originally Posted by elwaylite

Yeah. I mean you are taking 8bit depth blu-ray color and outputting it at 12 bit for no reason, and then with UHD you are taking a quality 10bit depth color and outputting 12 bit.

It can cause handshake issue and drop outs as well. IMO it is unnecessary to even leave on auto, just turn it off. If it isn't causing problems in your chain, fine, but cutting it to off is reliable for most.

With SDR blu-ray the output would normally be 1080p/24 ycbcr 444 8 bit, with DC on it would be 12 bit. For HDR it would normally be 4k/24 BT2020 ycbcr 10 bit, with DC on it goes to 12 bit.

UHD is natively 4K/24 BT2020 10 bit, no need to convert it to 12 bit inside a player that may be mucking with the image. Output it at it's native format.

Okay, thanks!

[movielover1069]

Originally Posted by Storm5m

Within the Amazon App. When I select an HDR title and select an episode to view details, HDR appears. When I play that episode it ramps up my backlight so I know it is processing the HDR signal.

Tried that but okay, I'll check again!! I clicked on Funny Girl to see the details and didn't see the HDR tag at all.

[elwaylite]

Originally Posted by movielover1069

Okay, thanks!

I also forgot to point out, if you use auto it may set to ON depending on what your system reports in the handshake, regardless of whether it is good or bad. That is where OFF is the safe choice with that one.

[Storm5m]

Originally Posted by movielover1069

Tried that but okay, I'll check again!! I clicked on Funny Girl to see the details and didn't see the HDR tag at all.

Try Red Oaks. Make sure it has the UHD banner. I see TV-MA 5.1 CC HDR 2015 Comedy

Hope that helps. Also you need the usual I suppose. HDR tv and a high speed HDMI cable

[ray0414]

Originally Posted by movielover1069

Tried that but okay, I'll check again!! I clicked on Funny Girl to see the details and didn't see the HDR tag at all.

Thats because funny girl isn't in hdr

[ray0414]

http://www.avsforum.com/forum/166-lc...ted-often.html


For a complete hdr list, try this.

[mrpink134]

OK question, why is it when I watch a UBD with HDR my picture is dark? What am I doing wrong?

[ray0414]

Originally Posted by mrpink134

OK question, why is it when I watch a UBD with HDR my picture is dark? What am I doing wrong?

Bump up gamma to +2 or 3.


Also give the dynamic contrast setting a try, it will boost brightness too

[movielover1069]

Originally Posted by Storm5m

Try Red Oaks. Make sure it has the UHD banner. I see TV-MA 5.1 CC HDR 2015 Comedy

Hope that helps. Also you need the usual I suppose. HDR tv and a high speed HDMI cable

Checked Red Oaks. Still don't see it.

[ray0414]

Originally Posted by ray0414

http://www.avsforum.com/forum/166-lc...ted-often.html


For a complete hdr list, try this.

Originally Posted by movielover1069

Checked Red Oaks. Still don't see it.

Go to post #2 on that link, it will give you a detailed step by step tutorial with pictures of each step.

[movielover1069]

Originally Posted by ray0414

Go to post #2 on that link, it will give you a detailed step by step tutorial with pictures of each step.

Aaaah, now I see it! Thanks Ray!! Yes, they sure don't make it easy!