DVD is the acronym for Digital Versatile Disc, or Versatile Digital Disc. DVD is a disc capable of write data in a digital format, is a more current version in relation to the CD, as it has a much greater capacity for storing data and files.
DVD was created in 1995, as a replacement for CDs and VH tapes, which was the old technology for watching movies, for example. The first DVD players appeared in Japan, and the first DVD movie released in the United States was Twister, in 1996. The DVD became popular in Brazil only in 2003.
DVD has the capacity to store 4.7GB of data, and the old CD held a maximum of 700MB. There are two types of DVDs, non-rewritable, which only allow one recording, and rewritable, which allows you to erase, add and rewrite data.
DVD already has two replacements, HD DVD and Blu-ray, both with greater storage capacity. These are Blu-ray and HD DVD formats. Blu-ray can record up to 50GB of data and HD DVD 30GB, in addition to sound and image quality.