DVD

DVD

Matrix DVDShort for Digital Versatile Disc or Digital Video Disc, a DVD or DVD-ROM, is a disc capable of storing large amounts of data on one disc the size of a standard Compact Disc. DVD drives were first sold in 1997, today they are widely used for storing and viewing movies and other data. To play a DVD on a computer a user must have a DVD drive as well as a DVD player, which is a software program designed to play and control a DVD disc. The movie Twister became the first featured film put on DVD on March 25, 1996. In the picture to the right, is an example of what a DVD movie may look like, in this example it's a picture of the Matrix movie.
How much data can a DVD hold?
There are several capacities a single DVD disc is capable of holding. Below is a listing of the different types of DVD's and each of their total capacity.
  • One of the most common DVD's is the single-sided, single-layer disc, capable of holding 4.7 GB.
  • The single-sided, double-layer disc is capable of holding between 8.5-8.7 GB.
  • The double-sided, single-layer disc is capable of holding 9.4 GB.
  • Although rare, the double-sided, double-layer disc is capable of holding up to 17.08 GB.
What is the difference between a DVD and a CD?
Physically, a DVD and CD look the same. Both discs are the same size and typically have one side with a label and the other side that the laser reads, unless it is a double-sided DVD. However, the technology that makes up a DVD allows for the same size disc to hold a lot more data than a CD.


Written by