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| Hardware > Peripheral Hardware > Storage Hardware > Storage Media > Optical Storage Media > |
DVD
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ALSO CALLED: Video Disks, Digital Video Disks, DVD-R, DVD-ROM, and Recordable DVD
DEFINITION: Digital video is part of digital versatile disc (DVD), a new optical disc technology that is expected to rapidly replace the CD-ROM over the next few years. The DVD holds 4.7 gigabytes of information on one of its two sides, or enough for a 133-minute movie.
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DVD DEFINITION (continued): … With two layers on each of its two sides, it will hold up to 17 gigabytes of video, audio, or other information. (Compare this to the current CD-ROM disc of the same physical size, holding 600 megabytes. The DVD can hold more than 28 times as much information.) The DVD player will also play regular CD-ROM discs. DVDs can be recorded in any of three formats, variously optimized for: video (for example, continous movies) audio (for example, long-playing music), or a mixture (for …
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