Blu Ray Discs Provide an Increase in Store Content
In the early 1980’s, the world changed with the introduction of the CD. It offered excellent audio quality and its 650MB storage capacity was a great leap in data storage and retrieval. This was the first time people had access to pre-recorded, recordable and rewritable media at low costs. It allowed extensive copying and sharing out of audio. However, in the 1990’s, the demand for higher storage capacities arose and led to the development of the DVD which was a 5 – 10 x increase in storage capacity. Although it was a new technology, the new DVD format used the same form factor as the CD which facilitated the migration into the next generation format. This increased the DVD’s popularity with the clients.
In the present day, blu ray discs have made still another upheaval. This novel optical disc system is an important creation of the Blu Ray Disc Association (BDA) which includes Dell, Hp, Hitachi, LG, Samsung, Apple, JVC, Panasonic, Mitsubishi, Sony, Pioneer, Philips, Thomson, Sharp and TDK. The BDA boasts 180 of the world’s leading consumer electronics, media and personal computer manufacturers.
Blu ray discs offer an increase in storage capacity with its 25GB on a single-layer disc to its 50GB on a dual-layer disc. It is the last word in user experience and facilitates rewriting, recording, playback and distribution of HD videos. The blu ray discs have been founded on the bare disc physical form factor which makes it compatible with CDs and DVDs.
The blu ray discs, as the name suggests, uses a blue-violet laser to read and write data unlike the current technology which uses red laser. The wavelength of a blue-violet laser (405nm) is way shorter than that of a red laser (650nm) and this has made it easier to concentrate the laser spot with superb accuracy. The plus point in this is that it allows storing of data in very little space compactly giving the user extra space to add more data even though the size of the disc is similar to that of a normal CD/DVD.
Several of the world’s prominent PC and video game makers, recording media and consumer electronics and music companies have taken up this technology today and Hollywood studios and various smaller studios have already taken interest in these latest blu ray discs with the results of some of them already announcing the release of their new flicks on blu ray discs.
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