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Blue Ray DVDs Look Like Being The Way Forward For Home Cinema

This next generation optical disc format – Blue Ray DVDs - is a proud development of the Blu Ray Disc Association (BDA) that include HP, Dell, LG, Hitachi, Apple, Samsung, Panasonic, JVC, Sony, Mitsubishi, Philips, Pioneer, Sharp, Thomson, and TDK.  The Blu Ray Disc Association has the globe’s most prominent manufacturers of PCs, consumer electronics and media.

DVDs, lets face it have its days counted. With more and more people upgrading to HDTV to enjoy modern digital television, the need to store high-definition content is also on the rise.  But, DVDs support a resolution up to 720x480 pixels while high definition content resolutions are as high as 1920x1080 pixels. High definition video content also consumes a lot of hard drive space.  Two hours of HD content with data compression necessitates up to 22 GB of storage space while a DVD-18 disc (dual-sided dual-layer disc) has a storage capacity of only 17GB.

The solution to this problem has let to the development of two technologies – Blue Ray Vs HD DVDs - that are now in fierce competition with each to gain market share and become the successor of the DVD.  Both these technologies are very similar in nature but the blue ray DVDs have an advantage since these boast a far higher storage capacity than the HD DVD. As the name denotes, the blue ray discs make use of a blue-violet laser to write and read data in contrast to the existing technology which makes use of red laser.  A blue-violet laser (405nm) carries a much lesser wavelength than a red laser.  The advantage of this is that, it permits data to be stored in less space since the data can be packed more tightly, which further, allows consumers to fit additional data on the disc even though it may be the same size as a CD or a DVD.

A single-layer high definition DVD can hold only fifteen GB of data whilst single-layer blue ray DVDs can hold twenty-five GB which amounts to over two hours of HD video and thirteen hours of normal video. A dual-layer HD-DVD can hold up to 30 GB whereas dual-layer blue ray DVDs can store 54 GB which is 4.5hours of high-definition video and more than 20hours of a standard video.

For instance, the Hobbit Movie Forum just had a discussion about the news that the Lord of the Rings on Blu Ray would be on sale in the summer with the entire trilogy in high definition and on just 3 discs.

Blue Ray DVDs are easy on the producers too as they are created by injection-molding procedure on a single 1.1-mm disc in contrast to the traditional injection-molding method on a 0.6 mm (High Definition DVD adopts the same process) which in turn cuts down on the costs.  The money so saved is spent on the addition of a protective layer necessary on blue ray DVDs and this causes the end price to be more or less same with the current price of a DVD.

HTC Rezound Review (Slash Gear)

Verizon isn't stinting on 4G LTE smartphones, and hot on the heels of the
DROID RAZR comes the HTC Rezound. Where Motorola chased slimness, HTC has
targeted all-round top-flight features of the sort we've not really seen from
the company in some time. So, the Rezound packs a 720p HD resolution display,
speedy dual-core processor [...]

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