So you plopped down a pile of cash to buy a 4K TV, maybe even one that delivers high dynamic range. Awesome. Once you’ve wowed your friends and family with those lush demo files the manufacturer provided, you’re going to want to splash some 4K movies across that screen. A 4K Ultra HD Blu-ray player is just the ticket. 

Most players also stream 4K HDR video from a handful of video-streaming services—including Netflix, Amazon Video, and Vudu—if you have the bandwidth, that is. If your ISP can’t deliver super-fast download speeds, you won’t be able to stream 4K.

And then there’s the audio side of the equation. Nearly every Blu-ray disc contains a high-definition soundtrack encoded in Dolby TrueHD or DTS HD Master Audio. Some will also contain Dolby Atmos and DTS:X data that expand surround sound to include height information. (We have an in-depth story about Dolby Atmos and DTS:X here).

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