The discs support both high dynamic range by increasing the color depth to 10-bit per color and a greater color gamut than supported by conventional Blu-ray video by using the Rec. Ultra HD Blu-ray supports 4K UHD (3840 × 2160 pixel resolution) video at frame rates up to 60 progressive frames per second, encoded using High-Efficiency Video Coding. Ultra HD Blu-ray discs are incompatible with existing standard Blu-ray players, though a traditional Blu-ray and digital copy are often packaged with Ultra HD Blu-ray discs. Ultra HD Blu-ray ( 4K Ultra HD, UHD-BD, or 4K Blu-ray), is a digital optical disc data storage format that is an enhanced variant of Blu-ray. High-Definition Versatile Multilayer Disc (HD VMD).HD DVD: HD DVD-R, HD DVD-RW, HD DVD-RAM. ![]()
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