Blu-ray DVD and Blu-ray technology history

Blu-ray refers to the technology used by manufacturers to develop Blu-ray. Blu-ray Disc (BD) optical disc is a memory for storing data used by video, computer games and other forms. It has a huge storage capacity, up to 25 GB for a single-layer compact disc (CD). Its name comes from the blue violet laser used to read the disc to the stored content. It uses a short wavelength, the less the use of a standardDVD, but it brings the memory capacity of up to six DVD set.

They say that necessity is the mother of invention. Blu-ray have been out of the need to provide a cost-effective device for playing high definition content developed. Before development, the devices proved to be highly inefficient and cumbersome. started after the development of Blu-diode laser, a project called "Blue DVR has been at the center of which was the development of rewritable discs. These records would eventually be convertedto be "Blu-ray. The first Blu-ray have been made public, in use in Japan only. However, this lack of standardization of the product for the recording of video and as a result of the major film companies would not accepted.

Finally, standardization Blu-ray was developed. Then, a hard coating polymer for Blu-ray Disc was invented. For this reason, the cartridges are no longer needed and were discarded. Blu-ray Disc Read Only Memory (ROM), discs were dropped during the finalthe same period. Earlier versions of Blu-ray use the same technology used on standard DVDs. However, changes to the disks greatly improved its storage capacity and allows the recording of the film with a GB of memory dual-layer disc 50. In the end, the researchers developed a product for the mass market. The Blu-ray was used for computers in a personal capacity and was equipped with two single layer and double layer.

Blu-ray frontsCompetition from High Definition (HD) DVD. The HD-DVD has a marketing strategy more effective is that the Blu-ray seem to make expensive and bulky. However, they got a reprieve with the development of third-generation PlayStation, as it has functioned as a Blu-ray Disc player-a. Over time, the sale of Blu-ray, HD DVD, if young people in particular, but also the general public the third generation of Playstation for entertainment.

Subsequently, theStraw that broke the camel's back, as it was, was the decision of cinema's most important to start using Blu-ray and HD-DVD as well. This affected the business of producing HD-DVD, because the theater was an important market for their product. This action to stop the film from distribution followed a decision of great stocking HD DVD. Following this development arrested those responsible for the production of HD-DVD of this product.

Many observers creditDevelopment of third generation Play Station together with the marketing techniques than by the supporters of Blu-ray as the trigger that the surge in Blu-ray and then the fall of HD-DVD deals like that.

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A brief history of Discman

The batteries were known as Discman Discman portable CD player with headphones by Sony. E 'was used for listening to music on the go. There have been several developments in the Discman product, including the addition of radio reception and the ability to describe and play recordable discs.

personnel capable of receiving audio devices such as radio mini-SW, AM and FM transmission was very popular in 1960. The demand for portable cassetteto play music players> whose selection was high in 1970.

Sony was the first company to market mini-radio at the end of 1950. A culture developed as a result of miniaturization of the first release of the Sony Walkman on the market in 1980. And 'quick success was due to be slightly larger than a tape cartridge. Sony executives are encouraged to invent a CD player to achieve the same.

The first CD player introduced to the market in 1982, was called CDP-101 and was distributed by Sony. It 'was announced that the technology Sony CD was jointly developed by Philips, Sony, Polygram and CBS. Billy Joel 52nd Street was the first commercial audio CD and was released by Sony in the CBS label.

The head of the Department of Development, Katsuaki Tsurushima came with the idea in 1983 in a portable CD player he hoped to create a CD> Player, the price would be affordable, not more than three or four CD cases stacked together and sold. The project idea was known as CD-CD.

By the end of 1984, Sony's engineers managed to fit in the case of a CD player in a little 'less stupid. The 50-D has been named the first Sony Discman portable CD player Sony has released for fans of Japanese music and he was sure his return from above. The D-50 was never delivered Discman with the mark and has neverPrecursor of portable Sony CD Discman.

CD players were very willing to jump in the early days. As D-50 players was no different, and the first Sony portable CD was only portable, with this first move Discman generation requires careful walk a lot, jogging and similar activities.

The technology does not improve significantly, there have been the subject of international models such as Sony Discman D-50. The Discman D-100slightly thinner than most D-50. The compact display technology has been improved from 1987 to the point that the D-20 is possible, an integrated battery compartment. Sony produced the Discman D-66 to 1992. In the early 2000s there was an increase of MP3 music and great design Sony Sony Discman with slipper system "G-protection."

The nickname was withdrawn and Walkman CD Walkman has been given a new name in 2000. At the same time, Sony 'W' logo with educatedThe points are connected. The brand is still dominated by Sony, which owned the rights to revive the brand in the future holds.

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