blu-ray

A new disc format made by Sony Corporation. It is primarily used to store High Definition video but it can also be used to store data like a DVD. Blu-ray uses a blue laser operating at a wavelength of 405 nm to read and write data. The small wavelength allows to store up to 200GB on a disc in 8 layer mode. A typical single layer blu-ray disc can hold 25GB. A popular video game console that uses blu-ray is Sony PlayStation 3.

Bob: "Do you have blu-ray?"

Tom: "NO. what's that?"

Bob "It's this new disc format made by SONY that can hold 25GB"

Tom: "so..."

Bob "It can hold HD content"

Tom: "Super cool"

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