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Blu-Ray Discs (BD). Introduction. Looks like normal CD or DVD Main uses – high definition and data storage Blue laser reads and writes to disc (405nm) wavelength compared to DVD (650nm) Dual layer stores 50GB (6x dual layer DVD) Scratch protection coating (TDK’s Durabis was first).
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Introduction • Looks like normal CD or DVD • Main uses – high definition and data storage • Blue laser reads and writes to disc • (405nm) wavelength compared to DVD (650nm) • Dual layer stores 50GB (6x dual layer DVD) • Scratch protection coating (TDK’s Durabis was first)