Are 4K Ultra HD Blu-rays really 4K?
And now we're at 4K Ultra HD Blu-ray, which gives you 3840x2160. And yet a fun trick of 4K is that you're not really paying for the resolution. As this video from Engadget explains, 4K isn't even really 4K, but really an upscaled 2K version, so what are you really getting for your money?
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