You might be thinking why would you want to get a next gen High Definition (HD) player in the first place? The answer is simple High Definition (HD) media gives you clearer pictures and sounds than you can get from Standard Definition. The detailed answer is about the pixels – High Definition gives you more pixels compared to Standard Definition as you can see from TV and DVDs, and more pixels means more picture information. Both HD-DVD and Blu-ray players can support all DVD resolutions, as well as HDTV formats 720p, 1080i, and 1080p. Besides that, both HD-DVD and Blu-ray also promises better sound in addition to clearer pictures with support 7.1 channels and uncompressed audio tracks.
DVD players use a red laser to read data while HD-DVD and Blu-ray use blue laser to read – understand now how Blu-ray got its name? The red laser’s wavelength 650 nanometer while blue laser’s wavelength is 405 nanometer. Tighter laser can read smaller bumps of information packed more densely on the HD-DVD and Blu-ray.
Blu-ray departs from the DVD standard method of burning data spirals – means new manufacturing facilities with high cost but Blu-ray disc are selling at roughly the same price as HD-DVDs. Besides that, Blu-ray use different standard from DVD, the players need to include extra mechanism to plat DVD – increase the DVD player’s price. HD-DVD on the other hand has a similar format to DVD so it can make use of existing DVD manufacturing facilities. HD DVD often come with the standard DVD version of the movie.
Infos extracted from HMW Mag.
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