HD NVD Is a Chinese

High definition High definition or HD may refer to: Visual technologies *HD DVD, discontinued optical disc format *HD Photo, former name for the JPEG XR image file format *HDV, format for recording high-definition video onto magnetic tape * HiDef, 24 frames-pe ...

standard created to compete with

Blu-ray The Blu-ray Disc (BD), often known simply as Blu-ray, is a digital optical disc data storage format. It was invented and developed in 2005 and released on June 20, 2006 worldwide. It is designed to supersede the DVD format, and capable of sto ...

discs. The standard uses a red laser like the one used in

DVD The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kin ...

and CD players whereas Blu-ray uses a

blue laser A blue laser is a laser that emits electromagnetic radiation with a wavelength between 360 and 480 nanometers, which the human eye sees as blue or violet. Blue beams are produced by helium-cadmium gas lasers at 441.6 nm, and argon-ion las ...

. This standard allows the Chinese companies to avoid paying royalties to foreign companies for the manufacture of Blu-ray products.

References

* * High-definition television Consumer electronics {{Asia-tv-stub