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2013年4月5日星期五

foamposites 2013 A New DVD Format War

Once the original DVD standard settled down, DVD players quickly became one of the most successful consumer items of all time air max 2013 for sale. The new format revitalised the home entertainment market, and hardware manufacturers benefited both directly and indirectly, as enthusiasts clamoured to buy bigger and better televisions and sound equipment to get the best from their new DVD players. Then came recordable DVD, but the problem, as is so often the case, was that there were a number of different recording standards, all of them incompatible air max 2013 for sale. It was just like Betamax versus VHS all over again. Now low-cost multi-format recorders supporting all the standards are hitting the streets, the recording problem is becoming less of an issue, and so one could be forgiven for thinking thats the end of the format wars air max 2013 for sale.But technology has a habit of advancing at a relentless pace, and now a new battle is set to commence. The hi-tech companies are fighting it out to establish the standard for next-generation high capacity DVDs air max 2013 for sale. Higher capacities will allow for even better picture and sound quality than the existing standard, and will become more popular as high definition televisions really start to take off. There are two competing high capacity DVD technologies, HD-DVD (High Definition DVD) and Blu-Ray. HD-DVD works by using multiple layers on a single disk, and its main advantage is its low production costs. Blu-Ray is technically superior it uses blue laser light instead of the red light used by existing players. This blue light has a smaller wavelength, and so the pits that it creates on the surface of the DVD to encode the data, are smaller. Smaller pits means more pits in the same space, which means higher capacity. Blu-Ray can store more information than HD-DVD, but presently is more expensive to implement. When Blu-Ray is combined with the multi-layering technology behind the competing format, it will see capacities rise to as much as 200 Gigabytes. Existing DVDs hold only 4.7 Gigabytes.The battle will most likely be won by the format that gets the most support from the big Hollywood studios nobody is going to opt for a DVD standard with a small catalogue of titles.

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