What are HVD?
HVDS are h olographic in erastile d iscs. It is one new generation storage technology at the current research phase. HVDs are specified for storing up to 3.9 terabytes (TB) data, which is equal to 3,900 gigabytes (GB), or almost 4 million megabytes of information. HVDS data transfer speed is 1 Gigabit per second, corresponding to 128 megabytes per second, or more than six times faster than high -speed DVD players. Blu-ray and HD DVDs offer storage capacity and accelerate much greater than DVD and both are ate by HVD specifications. HD DVDs have a storage capacity of 15 GB in one layer, 30 GB in a double layer and 45 GB in a triple layer. Blu-ray discs have a storage capacity of 25 GB in one layer and 50 GB in the dual layer. Nowhere will it be huge to the huge capacity to hit the market in 2006 in 2006, with the initial discs in the storage range of 150-300 GB. These discs will initially cost more than $ 100, with SamThe readers cost over $ 10,000. HVD players are designed to be compatible with current CD and DVD technology. The organization called HVD Alliance exists to support the development of HVD and related technologies. It is a group of companies, including consumer manufacturers such as Hitachi, Fuji and Mitsubishi.
One of the reasons why new disk technologies are needed in the consumer empire is to make full use of new high -resolution televisions. The current DVD technology does not allow enough information to present real high -resolution experience, but a solution such as HVD, provides more than sufficient capacity and bandwidth for detailed storage of the existing high -resolution TVs. HVD technology works by re -evaluating the way the holographic record has been historically achieved. While conventional wisdomShe has always concluded that two lasers must be used at exact angles to write and read holographic data, HVD shines two rays over a single lens. This allows a number of significant breakthroughs that allowed HVD to overcome previous limits.
The current plan set by HVD Alliance aims to have 500 GB of discs available until the beginning of 2008, with recorders at consumer level by 2009 and by 2010 full 2 TB of discs. There are a handful of competitive technologies with HVD. The most promising is technology called Media tapestries, in the development of infrared technology. The tapestries are able to hold up to 1.6 TB and have a bandwidth comparable to HVDS. At present, the tapiserie format does not have almost as much support as HVD, so it remains to find out whether any real competition will be present.