Definition & Meaning of "ultra HD Blu-ray"

What is "ultra HD Blu-ray"?

Ultra HD Blu-ray is a high-definition optical disc format designed to offer superior video and audio quality compared to standard Blu-ray discs. It supports 4K resolution, providing a much clearer and more detailed picture with four times the resolution of Full HD. Ultra HD Blu-ray also includes enhanced color depth and high dynamic range (HDR), which improves contrast and color accuracy for a more immersive viewing experience. This format is used for playing movies and other video content on Ultra HD Blu-ray players, offering improved visual and audio clarity for home entertainment systems.