Blu-ray discs: Storing high-definition data
Sony, Hewlett-Packard, Hitachi, Panasonic, Samsung and Philips are the some of the recognized manufacturers of Blu-ray discs. HD-DVD is developed by Toshiba, Warner Bros, Universal Studios and other leading movie studios. Talking about the storage space
Blu-ray disc offers 25 GB-50 GB where as HD-DVD only provides 15 GB-30GB. This means that a single layer of Blu-ray disc can store 25 GB of data and dual layer can hold 50GB. A standard DVD supports 720 X480 pixels; and one can store 4.5 GB data in these blank DVD disks. Talking about blu-ray disc, it can capture 1080p high-definition image and offer resolution of 1920X 1080p. Blu-ray discs have larger bandwidth than cheap DVDs and can generate signals at the speed of 48Mbps. You can play DVDs on Blu-ray players and enjoy superior performance.
At present, blank CD and DVD store and read data at 650-780 nanometer wavelengths. Sony and Philips CDs and DVDs offer 405 nanometer wavelengths. Blu-ray is basically an optical storage format and meant for storing high-definition video and sound. It is based on blue laser technology. The benefit of this technology is that it can allow storing more data in the same space and facilitate clearer picture. The major disadvantage of Blu-ray technology is that scratch can affect its quality. This is the reason they are so expensive than cheap DVDs. While using Blu-ray take utmost care should be taken to avoid scratch. This latest release is giving tough competition to the HD DVDs. Sony is planning to merge Blu-ray disc with the PS3.
Related posts:
Related posts brought to you by Yet Another Related Posts Plugin.
