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Blu-ray Disc
Also called BD, Blu-ray Disc is a high-density optical disc format for the storage of digital information,
including high-definition video. A single-layer Blu-ray Disc can store 25 GB, over five times the size of
the 4.7-GB single-layer DVD. A dual-layer Blu-ray Disc can store 50 GB, almost 6 times the size of the
8.5-GB dual-layer DVD.
Typical uses include the following:
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Storage of large amounts of data
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High-definition video playback and storage
6 Chapter 2 Using an optical drive