Since Blu-rays are natively 1080p, the UFR feature utilizes a proprietary scaling algorithm to simulate 4K HDR clarity without the bandwidth of a native 4K stream.
— Could you provide the full name or context? blurayufr
Formats like DTS-HD Master Audio and Dolby TrueHD provide a theater-like experience. Since Blu-rays are natively 1080p, the UFR feature
A new icon appears in the playback bar: a Blue Diamond . A new icon appears in the playback bar: a Blue Diamond
Here is a feature design called (Ultra-Fidelity Rendering).
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Less compression means fewer "artifacts" (blocky bits) in dark scenes.