Blu-ray discs are a new type of disc, created by Sony, enabling recording, rewriting and playback of high-definition video. Blu-ray discs will eventually replace the dvd as it has much better picture quality and can store much more data. The main competition for Blu-ray discs was HD DVDs, but they recently won selling rights of all DVDs. The DVD use red lasers to read and write data, whereas Blu-ray uses a blue-violet laser. They have a shorter wavelength than the red laser, so it can be more precise. This allows a larger amount of data to be stored in the same amount of space as a DVD. The Blu-ray disc is more appealing to the audience because they have better picture and sound quality than the traditional DVD. Blu-ray discs would appeal to hardcore film fans, who would happily spend a bit more, in order to improve their viewing experience.
Disney, Fox, Warner, Paramount, Sony, Lionsgate and MGM have all agreed to release their movies exclusively in Blu-ray format. The Playstation 3 comes with an integrated Blu-ray player, which will allow Sony to sell their Blu-ray discs to PS3 owners.
The Key concepts for Blu-ray discs are: Miniaturisation, Quality and Vertical Integration.
- Miniaturisation - More data can be stored on Blu-ray disc than a DVD, this eliminates the need for bonus discs or multiple discs per film.
- Quality - The quality of the picture and the sound is much greater and is in higher definition.
- Vertical Integration - Sony can now sell its Blu-ray discs to Playstation 3 owners, who do not need to buy a seperate Blu-ray disc player.
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