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History of Blu-ray disc

Article ID: 21
Last updated: 27 Nov, 2012
Commercial HDTV sets began to appear in the consumer market around 1998, but there was no commonly-accepted, inexpensive way to record or play HD content. In fact, there was no medium with the storage required to accommodate HD codecs, except JVC's Digital VHS and Sony's HDCAM. Nevertheless, it was well known that using lasers with shorter wavelengths would enable optical storage with higher density. When Shuji Nakamura invented practical blue laser diodes, it was a sensation, although a lengthy patent lawsuit delayed commercial introduction.
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Article ID: 21
Last updated: 27 Nov, 2012
Revision: 1
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HD DVD vs. Blu-ray Disc Explained       Comparison of high definition optical disc formats