What is 4. K Blu- ray? CNET. Warner Bros. Ultra HD 4. K Blu- rays have the best picture quality possible for your 4. K TV, even better than streaming 4. K from Netflix or Amazon.

Even better, many discs have high dynamic range (HDR) and wide color gamut (WCG) content, which provide a much more noticeable improvement than 4. K resolution, provided your TV can deliver it.

But I hate physical discs," you say. I hear you. But for people who want peak image quality, a disc is still the way to go. And for new and current movies, it's often cheaper than you'll pay for streaming. The Discovery Full Movie Online Free. The industry has learned from its past mistakes, at least a little. K players will all play standard Blu- ray discs and DVDs as well, for example. There's also only one format!

No UHDDVD or other such nonsense. All the manufacturers are on board for a single unified format, so the great Blu- ray vs. HD- DVD format war is ancient history. How is it different from regular Blu- ray?

There are plenty of interesting features that differentiate the two. It's like the companies behind Blu- ray are throwing everything into 4. K with either a "Yeah, let's do it right!" or "OMG streaming will kill us all!" mentality. K UHD resolution: Standard Blu- ray discs are high- definition 1. K (ultra high- definition) TV with sumptuous detail.

Of course 4. K resolution is often difficult to discern from 1. K to begin with and most graphics aren't in 4. K either. Even so, the 4. K Blu- ray is typically the highest- resolution version of that particular film currently available. Expanded color: Thanks to advancements such as OLED and quantum dots, a much wider color gamut is possible in many modern TVs. The problem is, they'll need expanded color gamut content for this feature to be useful. That's where 4. K Blu- ray discs come in.

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The 4. KBD format has the ability to do the full extent of the Rec. DCI's P3 color range is available on today's discs. Either one is a big improvement over the current HD standard used on standard Blu- ray, Rec. CRT). For background info, check out Ultra HD 4.

K TV color, part I and Part II. For the current tech, check out: What is wide color gamut? High dynamic range: Most 4. K Blu- rays have HDR data. HDR is really cool.

It means brighter highlights, expanded contrast ratios and more, on TVs that support it. Read more about it: How HDR works.

Most 4. K Blu- ray discs are available with HDR. Sarah Tew/CNET. 1. Both HDR and expanded color are possible, thanks to a higher bit- depth of 1. HD's 8- bit. At the very least, this means more steps of gradation - - no banding, not that Blu- ray had much.

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Higher frame- rates: 4. K at 6. 0 Hz. Not a big deal, honestly, as nearly all movies are 2. K BD). Still, that leaves some headroom for future concert videos or if you want to torture your brain with the HFR "Hobbit."H. HEVC: This is the latest codec, allowing 4. K at "reasonable" bit rates. Technically, you could fit a 4.

K movie on a current Blu- ray disc (size- wise), but at that level of compression, what's the point? Instead, there will be..

Greater capacity discs: Most current Blu- rays are 2. GB, some are 5. 0GB. KBDs will be 6. 6GB or 1. GB. These discs won't play in your current player.

Sorry. Audio: Expect formats such as Dolby Digital and True HD in their respective variations, and DTS in its various flavors, will all be there. We'll also see Dolby Atmos and DTS: X. Should you care? 4.

K Blu- ray faces a lot of competition from 4. K streaming. Netflix. Though Blu- ray disc sales are still a big source of revenue for the studios, their popularity is rapidly declining. Netflix, Amazon and others offer 4. K streaming, and most offer HDR content as well. The fact is, most 4.

K Blu- rays will look significantly better than any streaming feed. The compression issues we've seen with HD are just as possible with UHD, though how it's compressed is different. Sadly, most people won't care. Worse, most people won't know there's a difference. K is 4. K to most people (and if you're reading this, I'm not counting you in the "most" group).

That's a battle not likely to be won by an archaic physical media, no matter how shiny it's marketed as being. Think that's pessimistic? How many of your friends still watch DVDs? Sarah Tew/CNET. Will your current TV be able to take advantage of all this? Maybe. Depends when you bought it. At the very least your TV will need HDMI 2. Watch Sugarbabies Full Movie. HDCP 2. 2 to play the discs, and HDMI 2.

HDR. (HDMI 2. 1 is the latest, but that's overkill at the moment.) The HDR and WCG won't work on pre- 2. TVs, since those technologies didn't really exist then. If you bought a mid- to- high- end 4.

K TV since 2. 01. Check the specs and see if it has the aforementioned HDMI and HDCP compatibilities. Your current HDMI cables should work. Of course, you'll also need a 4.

K Blu- ray player such as the Samsung UBD- KS8. AU$2. 00) or an Xbox One S (about $2. AU$2. 90). More players are coming out in later in 2. Bottom line For picture- quality fans this new format is great.

The resolution will be awesome on really big TVs, and the potential color and HDR aspects will be amazing on any size TV that can take advantage of it. But it's never going to be as popular as Blu- ray - - we're too far into the streaming era for that. Hopefully it will tide us over until we all have ultrafast broadband and 4. K streaming can actually look good. Got a question for Geoff?

First, check out all the other articles he's written on topics like why all HDMI cables are the same, TV resolutions explained, LED LCD vs. OLED,and more. Still have a question? Tweet at him @Tech. Writer. Geoff then check out his travel photography on Instagram. He also thinks you should check out his bestselling sci- fi novel and its sequel. Editors' note, April 1. First published in 2.