HD NVD
Encyclopedia
HD NVD Is a Chinese High definition
standard created to compete with Blu-ray discs. The standard uses a red laser like the one used in DVD
and CD players whereas Blu-ray uses a blue laser
. This standard allows the Chinese companies to avoid paying royalties to foreign companies for the manufacture of Blu-ray products.
High-definition video
High-definition video or HD video refers to any video system of higher resolution than standard-definition video, and most commonly involves display resolutions of 1,280×720 pixels or 1,920×1,080 pixels...
standard created to compete with Blu-ray discs. The standard uses a red laser like the one used in DVD
DVD
A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....
and CD players whereas Blu-ray uses a blue laser
Blue laser
A so-called blue laser is a laser that emits electromagnetic radiation at a wavelength of between 360 and 480 nanometres, which the human eye sees as blue or violet. Diode lasers which emit light at 445 nm are becoming popular as handheld lasers. Light of a shorter wavelength than 400 nm is...
. This standard allows the Chinese companies to avoid paying royalties to foreign companies for the manufacture of Blu-ray products.