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only option available currently for high definition DVDs is the Blu-ray disc. Before this, there was another competitor that aimed for the same position Blu-ray holds now.
Toshiba created a type of disc known as HD DVD. This was the main competitor of Sony's Blu-Ray for six years. It was only towards the end of the war that the victor became apparent.
The ambiguity of who would win the format war stemmed from the situation of an equal number of prestigious producers who offered Blu-ray and HD DVD. The formats had an adequate amount of support to keep on fighting.
The two format types are more similar than different. They both use 405nm blue-violet laser, which enables large amounts of data to be stored. Blu-ray discs have a higher numerical aperture, so they can emit light over more angles and thus have a greater memory capacity.
In addition to memory [link widoczny dla zalogowanych], Blu-ray discs can achieve greater speeds than HD DVDs. This is because Blu-ray has a bit rate of about forty megabits [link widoczny dla zalogowanych], while HD DVDs only have a little less than thirty.
Blu-ray's characteristics are certainly superior to HD DVD, and that combined with another fact assured its victory. Near the end of the format war [link widoczny dla zalogowanych] Warner Bros. selected Blu-ray as its medium of distributing high definition discs. Subsequently, additional producers caught on and before long HD DVD was left with a minimal amount of titles.
When Sony announced that the upcoming next generation console Playstation 3 would come standard with a Blu-ray player, the format war was decided. Since so many people were planning on buying the PS3, this announcement clinched the battle.
It is nearly impossible to find HD DVDs in stores anymore, as the format war officially ended when Toshiba announced it would stop developing HD DVD players in February 2008. Since Blu-ray is a better format, not many people minded the fall of its competitor.
To locate more blu-ray movie reviews, go to the author's website.