an optical disc format that contains 25 GB of data per layer. It also comes in double (50 GB), triple (100 GB), and quadruple layers (128 GB)

Blue-ray logo
The Blu-ray format was introduced in October of 2000, with the first prototype produced 3 years later in August of 2003. It was finally released in June of 2006. The term "Blu-ray" refers to the blue laser used to read the disc

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