NEWS: First Dolby Vision Ultra HD Blu-ray Discs Spotted

Discussion in '4K Ultra HD Blu-rays' started by Mark Hodgkinson, Mar 29, 2017.


    1. Mark Hodgkinson

      Mark Hodgkinson
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    2. the_dude2

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      "The movies, both from Universal Studios, also apparently feature a DTS:X audio track"

      if they are anything like the Fast and Furious releases they wont! Expect DTS HI RES!
       
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    3. bailey1987

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      I honestly didn't think we would be seeing this on Ultra HD Blu-Ray, my thinking was that it would just be teased throughout Ultra HD Blu-rays life only to appear on 8K.

      Question remains though, how many nits will the version of Dolby vision on ultra HD Blu-ray reach? If it's only going to top out at 4,000 nits I can't see the point in implementing it as HDR 10 can do that.
       
    4. Steve Withers

      Steve Withers
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      Dolby Vision isn't about peak brightness (both DV and HDR10 can theoretically go up to 10,000nits), you might find this article interesting – What is Dolby Vision?
       
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    5. Geoff_D

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      Eh, it's not really about the nits IMO. DV's main USPs are extended 12-bit depth and also dynamic metadata to better control downconversion of the image to the target display. The latter aspect will be less important the closer the TV gets to the actual mastering spec (full P3 primaries, 1000 nits peak minimum) but it will be a boon for OLED owners in particular as LG's HDR10 mapping isn't quite as cultured as some, and DV enabled projectors should be able to get a FAR better handle on the low APL of certain HDR movies. Exciting times!

      [edit] ninja'd by Steve :D
       
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    6. simonblue

      simonblue
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      I thought DV was an all in one packages,so it would also have an Dolby Atmos track as well ? :)
       
    7. kristoffer

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      Finally!
       
    8. Geoff_D

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      The clue is in the name: Dolby Vision. They're free to put whatever codec for the audio they like onto disc.

      You're thinking of Dolby Cinema, which does indeed include both Vision and Atmos.
       
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    9. simonblue

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      I was reading a while back from Dolby,about the Dolby Cinema thing,and they said at the time they would like to offer for Home cinema as well :)

      It will be a fair while before i am DV anyway,can't afford to upgrade yet from HR-10 :D
       
    10. Blues Rock

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      Quite Frankly I dont give a Dam. Bluray 1080p is Good enough
       
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    11. Captain Ron

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      I really enjoyed the first DM. Not seen the second and for some reason I don't have either in my collection. So from my point of view a good choice for first DV discs.Don't think I have any DTS:X either so double bonus! :)
       
    12. Captain Ron

      Captain Ron
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      Be interested to know what else Universal are releasing on UHD at the same time. Keep an eye out for the specs on those titles too.
       
    13. Davyhulme

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      Any thoughts on the first release being an animation rather than live action?

      What's the benefit of using DV here?
       
    14. simonblue

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      Quite a few reviewer have said that its hard to tell any big difference between,an upscaled animation blu ray and the UHD,don't no if thats the reason,but should help sell animation UHD something new ? :)
       
    15. Geoff_D

      Geoff_D
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      Animation, especially the digital kind, can be prone to banding/posterisation in large patches of colour (See: the Peanuts movie in UHD) and DV's 12-bit depth should ensure that banding is kept to a minimum. People appear to be continually mystified by this choice but it makes a lot of sense to me.

      Basically, the higher the bit depth the more levels of colour gradation are introduced in the image so there's less opportunity for this 'false contouring' to occur, e.g. 8-bit Blu-ray manages 16.7 million, 10-bit UHD manages 1.07 billion shades and 12-bit DV UHD will reach 68.7 billion shades.

      Indeed, Dolby chose to keep 12-bit for their proprietary version of their Perceptual Quantizer EOTF (HDR10 being a royalty-free 10-bit version) because it's below the Barten threshold where visible banding will occur. It still needs competent mastering of course, but DV should finally herald the end of ugly colour banding on home video.
       
    16. BrightonChris

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      Well that will only be of benefit if you have a 12 bit display. Which is no one. Which leaves you with the metadata being the positive over HDR10. Yet to be determined if that will make a difference. In theory it should, but from what I've read on this site and others, early demos are inconclusive.
       
    17. Geoff_D

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      Sure, it depends on how well the famed downconversion metadata from DV is able to map the 12-bit down to the native 10 of the display, but then again the concept of oversampling comes into play: there's a reason why Sony adopted Super Bit Mapping for both mastering of their Blu-rays and the internal processing of their TVs (which runs at 14-bit IIRC), as creating a higher quality source and properly dithering that down to the lower source will result in less banding than just whacking the source itself straight onto disc.

      Some may then point to the 4K 12-bit 4:4:4 banding snafu with certain TVs as evidence to the contrary which is fair enough, but the DV source as encoded to disc will be 12-bit 4:2:0 so the rest of the chroma subsampling data is just upscaled and a 12-bit 4:2:2 output will be the preferred option. And TBH if a TV has a Dolby Vision badge but isn't capable of properly dithering down the 12-bit DV input to create a superior output to HDR10 then it's got no business having that badge on it in the first place.
       
    18. Geoff_D

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      And although there's no genuine 12-bit panels, hopefully we'll see some 10-bit + Hi-FRC panels appear soon enough.
       
    19. kristoffer

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      Hi-FRC?
       
    20. vaktmestern

      vaktmestern
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      Im Dolby Vision ready :smoke: the eco system is in place
      This is stage 2 on UHD kicking in...
       
    21. raduv1

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      What I like about DV is there is no need to upgrade my hardware anytime soon to watch it as the HDR 10 base layer will be in place . I can purchase discs in the future that have both and upgrade at my pleasure if I feel the need to . Win win .
       
      Last edited: Mar 31, 2017
    22. Geoff_D

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      Frame Rate Control, a means of overdriving the bit depth on LCD panels. (I'd wager that many of the "10-bit" panels out there are actually 8-bit + Hi-FRC, but it's close enough in terms of performance that they just label them as 10-bit anyways)
       
    23. simonblue

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      There never was an stage 2 to set in,the spec for UHD discs were set a fair while ago now,and DV could be adder at anytime :facepalm::)
       
    24. simonblue

      simonblue
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      The HDR-10 is the main specs for UHD discs,DV is and always has been an add on,the studio could add any time they wanted :confused::facepalm:
       
    25. raduv1

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      Um , isn't that what my post related ?
       
    26. vaktmestern

      vaktmestern
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      Next stage is wider colour gammut :cool: this is just a early start still
       
    27. simonblue

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      Fair enough,what i was trying to say the UHD discs specs were laid down a while ago,IMO nothing more likely to kill of UHD than if people with an HR-10 setup,now think they got to upgrade again.
      I think it has to be made clear DV is just an add on to the spec,not an different format as some are making it out to be :)
       
    28. raduv1

      raduv1
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      Yup I believe we and quite a few on here realise the situation. I still have a giggle when some new hardware is announced and many members first question is " is it DV ? " or " no DV ,no buy " whilst many will rock with HDR 10 and wait till the discs they want arrive.

      DV for me has become something of a yeah I can wait and see option for me dependant on studio releases. HLG though is another matter and I may have to upgrade my display for broadcasts. It's a holding pattern atm on discs and broadcasts whilst I can still enjoy the benifits of UHD with HDR 10.
       
    29. MagnusNikon

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      Lovely, but these titles do not make me replace my Samsung UHD player. Hoping for more UHD movies (better titles) with support for DV soon.

      Own a Oled E6 and exciting to see how the new DV titles on disc looks on the TV. Have some DV demos that i run directly from USB to my TV and some HDR10 demos and frankly, i see no difference between HDR10- and DV demos on my TV. Both look really good on my Oled.

      Netflix DV material is not so impressive away.
       
    30. BrightonChris

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      Whoever is in charge of Marketing at Dolby deserve a bonus. I'm seeing "no DV no buy" all over the place. When next to no one has seen it, there is no content and; from everything I have read from the few that have seen it there isn't a perceptible difference from HDR10 anyway!
       

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