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| Blu-ray is what could be the next big data storage. It uses an optical format similar to that of a DVD. However, Blu-ray uses a blue laser as opposed to a red one which enables it to be more precise and thus pack more data on a disk. This data reading is also backward compatable with DVD and CD formats. Blu-ray is designed specifically for HDTV. The technology was developed by several major electronic companies: Dell, Hitachi, HP, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson. There will be read-only, writable, and rewritable disks availible within a few years. The Blu-ray disks being produced now are built into a cartridge that is made of a paper material. This protects the disk and allows for extended disk life. Here are a more few key faetures of the Blu-ray format: -Allows for random random access data reading. -Simultanious recording and playback. -Better sound and video quality. -Price will be similar to that of DVDs. |
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| THE SPECS | ||||||||||||
| MEMORY: 25GB per layer (the common one will be dual or single layered and some quadruple) DATA TRANSFER RATE: 36 Mbps (over 3x that of DVD) LASER WAVELENGTH: 405 nm (40% smaller than DVD) COST PER DISK: $25 (expected to go down) COST PER RECORDER: about $2000 (expected to go down) |
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