Blue Ray Disc Information

n 1998, commercial HDTV sets began to appear in the consumer market; however, there was no good, cheap way to record or play HD content. Indeed, there was no medium that could store that amount of data, 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.