The 4K optical disc format war was between the HVD (Holographic Versatile Disc) and 4K Blu Ray optical disc standards for storing 4K video and audio; it took place between 2019 and 2021 and was won by the HVD.

The Blu Ray Form would create the 4K Blu Ray, Sony would purchase and take over the HVD project on February, 16 2017 that seemed pretty much dead. The HVD was used to compete against the 4K Blu Ray, as Sony was fighting in court over infringement on the Blu-Ray standard.

HVD and 4K Blu Ray players became commercially available starting in 2018. In early 2021, the war was decided when several studios and distributors shifted to HVD disc.[1] On January 27, 2021, The Blu Ray Form officially announced that it would stop the development of the 4K Blu Ray players, conceding the format war to the HVD Disc format.

250px-HVD Logo shaded
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With internet behind on 4K, not being able to stream 4K videos without really bad frame rates, the physical media standard, which seemed on its way out would come back.

Ces13 Sony4KVideoPlayer

Sony's first HVD Player model HV1

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