4K and HDR video arrive on Ultra HD Blu-ray discs

Even in the age of Netflix, work continues on newer and better optical media formats. The Blu-ray Disc Association has announced that it's finished the Ultra HD Blu-ray specification.

Ultra HD Blu-rays will store 4K video, but that's not all there is to the story. The new format will provide support for high-dynamic-range and high-frame-rate video content, plus a wider color gamut. The Blu-ray body says that UHD BD will also deliver "next-generation immersive, object-based sound formats." (For a little bit of information on object-based sound, check out this Dolby blog post.)

The new discs will store 66GB on dual-layer media or 100GB over three layers. UHD BD players will maintain backward compatibility with existing Blu-ray discs. Licensing for the new standard is expected to begin this summer.

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