Because they are vertical in shape and they produce light and they are good because of bad for good in the bad of the fair safari in the zoo
holographic versitile stuff i guess
up your bum
multimedia portable computer
they are developing new types of dvds called hvds(holographic versatile disc) which can carry 4 TBs of data.
the Holographic Versatile Disc is apparently the next (next) generation of optical storage. A HVD disc could hold as much data as 200 standard DVDs (that's 1 Terrebyte) and transfer data 40 times faster. The Holographic Versatile Disc Alliance has been formed to flesh out standards for this new technology which is based on holography breakthroughs from Japan's Optware, one of the six founders of the consortium. Optware describes on its website how holographic recording technology records data on discs in the form of laser interference fringes. Other members of the alliance include CMC Magnetics Corporation, Fuji Photo Film, Nippon Paint Co. Ltd., Pulstec Industrial Co., Ltd. and TOAGOSEI CO., LTD.,
pits
Low-powered laser light
In the Blue Ray Disc Drive
Enhanced Versatile Disc was created in 2003.
The laser that scans the disc for it's content. It's how optical discs work. A red laser is shone onto the surface of the disc. The reflected light is received and differences, caused by pits inside the disc, can be read as 1's and 0's.
An optical storage device is an electro-mechanical unit that can save and retrieve (write and read) information on a special disc medium using a laser light. Optical drives are designed to work with several types of media: CDs ("compact disc"), DVDs (digital versatile disc" or "digital video disc") and Blu-ray discs.
An optical storage device is an electro-mechanical unit that can save and retrieve (write and read) information on a special disc medium using a laser light. Optical drives are designed to work with several types of media: CDs ("compact disc"), DVDs (digital versatile disc" or "digital video disc") and Blu-ray discs.