What is DVD (Digital Versatile Disc) ?

DVD (Digital Versatile Disc)
Originally called the Digital Video Disc, DVD was quickly renamed to include other possible uses of the format such as computer data. The disc is similar in shape and size to an audio Compact Disc and contains a vast amount of information on a single disc. When used for motion pictures, the disc often contains an entire movie in several languages and several screen "aspect ratios". DVDs contain digitally encoded information that requires a special player to decode. DVDs are purchased or may be rented for your enjoyment at home. Major benefits of DVDs include superior audio/video performance, instant access to "chapters" within the movie, and an increasingly vast library of titles.