With blue ray tv the difference between the DVD format and the Blue ray format is that DVD players use a red laser to read data while Blue ray players use a blue/violet laser to read data.
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The answer to what is a blue ray disc is also found in its primary use, which is of storing high-definition movies though it is also very useful in storing high volumes of data ...
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The everyday buyer is unlikely to be able to tell the difference between a blue ray and DVD disc. blue ray uses a blue (and violet) laser to record, read computer code optically from a blue ray disc
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Finding out about what is blue ray technology includes learning about the differences between blue ray technology and the current mass marketed DVD systems
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