Showing posts with label hd. Show all posts
Showing posts with label hd. Show all posts

Wednesday, 23 December 2009

Get Information That You Should Know About Blu-Ray And HD DVD

Movies are finally ready to take advantage of high definition displays in the stores for years. DVD's brought us great picture and sound that a tree in the television and home theater market created. Display technology rapidly grew to an image that us two times as well as DVD-quality video. The problem was that DVDs can not store enough information to HD-quality video and sound, suitable to date. New technology has a DVD that can store up to five times more information than before. This new technology comes in two sizes called Blu-Ray and HD DVD. These two formats were created separately and they currently compete with each other. They both use similar technology to HD-quality video and audio, but they do have a number differences.The technology behind the two formats is based on the same optical technique that regular DVDs use. A laser is directed at the surface of the disc and reads the digital information is converted to video and audio. Blu-Ray and HD DVD incorporate a new colored laser that can be more focused on a smaller area of the disk. This may there be more information packed on the same size disc. It is like a turntable with a smaller needle and lines are tighter together just moved to the center, allowing more space to the exterior for more information. The reason for the fact that the data fit the same size as a DVD disc so that all optical discs created with older technologies will fit into the same reader. So a Blu-Ray or HD DVD player plays CD, DVD and their own discs. Because of their competition are no players that will play Blu-Ray and HD DVD.The main difference between the two formats is simply a matter of storage. HD-DVD can store 15GB and about three times as much as a DVD. A Blu-ray disc can store 25GB which is about five times as much as a DVD. Both have the same video resolution as of now, but Blu-Ray has the potential to improve the video store when available. For now, extra space is used for film extras like behind the scenes segments. Only time will tell whether these formats will merge or fight it out until the end. History has taught us that a format usually prevails.

Thursday, 29 October 2009

What Is HD Dvd?

HD DVD stands for High Definition Digital Versatile Disc. It is a thin circular disk and looks almost exactly like a CD or DVD. It is actually very similar to CDs and DVDs in all aspects except one. The difference is that HD-DVD a lot more information than the CD can hold / DVDs from the past. The way they packed more information in the same room does come from the color of the laser used to read the disc. HD-DVDs are read by a blue-violet laser instead of the traditional red bar. The blue-purple color has a shorter wavelength, making it able to focus on a smaller area more precisely. That way you can just stuff all of the information closer together on the same size disc. How much more? An HD-DVD contains about 3 times more information than a DVD. This extra space can fit HD-quality movies and sound. In particular, a 720p/1080i resolution 480i vs a picture on a DVD movie. A disk can contain any other type of information in addition to movies, but video is the most popular use for a DVD world. This is why many companies compete for HD home theater DVD players release. Paramount Pictures, Warner Bros. and Universal Studios have been lists of titles that will be available on HD DVD. Toshiba has already announced that it will produce two players. HD DVD is in direct competition with Blu-Ray, a similar technology that is not compatible implements. Blu-ray developed by Sony and is supported by the Blu-Ray Association including Apple, Hitachi, Dell, HP, LG, JVC, Panasonic, Mitsubishi, Pioneer, Philips, Samsung, Sharp, TDK, Sony and Thomson. Both technologies have similar launch dates and offer similar functions. HD-DVD players will use a new type called HDMI cable for the transmission of digital picture and sound. This cable has multiple wires for both video and audio quality that ensures the clearest. Using a wire for both video and audio creates less organized than the previous technology. Players will also have s-video and component connections to offer a wide range of possibilities.