On May 12, the Blu-ray Disc Association announced it had completed the specifications for Ultra HD Blu-ray discs and concurrently released a new logo to go with the format. UHD BD supports a maximum image resolution of 3840×2160 pixels, refreshed at a variety of frame rates (including 60 Hz) with a maximum of 10 bits per pixel coding.
The move to Ultra HD (or Quad HD) resolution is a big step forward for this optical disc format, which has been fighting to hold its place in the media landscape against video streaming and digital movie downloads, both of which can also handle 1080p/60 video with 8-bit color.
One key component of the new format is support for high dynamic range (HDR) imaging, being touted as the next big thing by the likes of Dolby and Vizio. HDR imaging represents about 15 stops of light from deep shadows to bright white, and is an impressive tool in the arsenal of next-generation television – which is essentially what Ultra HD (and beyond) represent.
Audio is getting a workout too, with the addition of object-oriented, multi-spatial playback formats that go far beyond Dolby and DTS 7.1 formats. (Anyone for NHK’s 22.2 surround format?)
Of course, all new Ultra HD Blu-ray players must be backward-compatible with older Blu-ray Discs. What’s not mentioned in the Blu-ray Disc Association press release is that your UHDTV must be compatible with HDCP (copy protection) version 2.2 to play back UHD content as it becomes available.
And if you do the math, you’ll realize that you’ll also need at least an HDMI version 2.0 interface (or DisplayPort 1.2, or superMHL) on your TV or projector to handle the much higher interface data rates that will result from 10-bit color played back from UHD Blu-ray discs. Every Ultra HDTV I’ve seen so far has at least one HDMI 2.0 input, and some are also including DisplayPort 1.2.
There’s another possible catch. The UHD Blu-ray standard supports HEVC H.265, a new video codec that is 50% more efficient than H.264 AVC, the current Blu-ray codec. H.265 is really a key part of the specification, considering there’s four times the image resolution in each frame of UHD video. So your UHD TV should also recognize and decode H.265 content, which may also arrive over streaming connections.
And “streaming” is the wild card here. There’s no question that Blu-ray provides the best at-home, near-cinematic experience of any playback format. However, the trend over the past half decade clearly shows more consumer dollars shifting toward streaming and downloads, often on smaller handheld devices like tablets which don’t need 2160p resolution. And with companies like Comcast, Verizon, Time Warner, and Cablevision worried about losing customers, more emphasis is being put on increasing broadband speeds to the home as a competitive marketing edge.
Add in a growing catalog of HEVC-compatible devices (TVs, set-top boxes, computers, gaming consoles) and it will be easier than ever to deliver UHD content to the home “on demand.” Maybe not next week, or even this year.
But it will happen: The blue laser optical disc format wars concluded about seven years ago, while video streaming was in its infancy. Today, we can stream 1080p video to just about any media device. Look at how many passengers on flights, trains, and buses now watch movies and TV shows on tablets and even smartphones. For the vast majority of consumers, the story is all about convenience and price in accessing and watching movies, and not so much about quality.
So – a new BD standard is a good thing, if for no other reason than to keep up with the shift to next-generation television. It will be a great format for those who simply have to own a movie, or who still want to rent one on disc. (I’m looking forward to finally seeing the burial and and reading the epitaph for 8-bit color!)
But the disc-focused segment of the market is becoming a smaller piece of the revenue pie for Hollywood with each passing year, and it’s not clear if the Ultra HD Blu-ray standard will have any impact on that trend. How fast will consumers embrace this format? What will movies cost, compared to today’s Blu-ray disc packages? How about the Ultra Violet registry, and cross-platform access to purchased content? Do we even need physical media any more?
Posted by Pete Putman, May 19, 2015 1:56 PM
About Pete PutmanPeter Putman is the president of ROAM Consulting L.L.C. His company provides training, marketing communications, and product testing/development services to manufacturers, dealers, and end-users of displays, display interfaces, and related products.
Pete edits and publishes HDTVexpert.com, a Web blog focused on digital TV, HDTV, and display technologies. He is also a columnist for Pro AV magazine, the leading trade publication for commercial AV systems integrators.