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Blu-ray, is physical media also known as Blu-ray Disc, is a high capacity optical disc format that supports high-definition video displays. Blu-ray derives its name from the color of the blue-violet laser that compatible Blu-ray players use to create a shorter wavelength than that of a red laser. This allows far more data to be stored and used by a Blu-ray player than a standard DVD player, resulting in better picture, quality, and sound.