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A [[DVD]] or '''Digital Video Disc''' is a circular shaped plastic disc used for playing video, and storing data. Data is read by reflecting a concentrated laser beam at a thin metallic layer within the disc. Fine holes or pits in the layer are picked up by the laser mechanism, and converted into data or video.
A DVD use the same concepts as a [[CD-ROM], but with higher speeds, and larger data storage, without increasing the physical disc size.
[[category:Technology]]
A DVD use the same concepts as a [[CD-ROM], but with higher speeds, and larger data storage, without increasing the physical disc size.
[[category:Technology]]