Second, while audio options haven't changed versus Blu-ray, Ultra HD Blu-ray video is an entirely different beast, with all sorts of new variables. Rating UHD BD vs BD isn't a fair contest. With a clean slate, we can ensure only the best of the best earn a perfect 5.0 star rating, and that we're judging against like like-capabilities. And this 3.0-star UHD BD could provide a more pleasurable viewing experience. In other words, depending on all sorts of circumstances, a film with a 4.5 or 5-star Blu-ray transfer could hypothetically see a 3.0-star Ultra HD Blu-ray. So please know we're going to be very conservative with our ratings, and Ultra HD Blu-ray Video Scores are on a completely separate scale from Blu-ray Video Scores. And, while I personally wish we could forgo numerical star ratings - review CONTENT is much more important - it's the world we live in. My colleagues, you the reader, and I all need to get used to the format, our new displays, and gain access to more accurate calibration tools. Reviewing a new format like Ultra HD Blu-ray obviously comes with a wee bit of trial by fire. For the purposes of our discussion here today, and as is common in the industry, the term "HDR" will serve as an umbrella term for both contrast and wider color capabilties.īefore we jump in, it's important we cover a few bases. Wide Color Gamut (WCG) is also supported, should filmmakers be so inclined, boosting performance from Rec 709 color space all the way up to Rec 2020. Support for multiple High Dynamic Range standards, including HDR 10 (an open platform HDR with 10-bit video depth & a peak brightness of 1,000 nits) and Dolby Vision (12-bit video depth with a still-theoretical peak brightness of 10,000 nits).
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