DVD drives

DVD drives

DVD drives are computer input devices that play, read and write DVDs. Similar to the DVD players that connect to a TV or home theater, they come in a variety of speeds and options (for details, see DVD player).

Each X Is 1.35MB Per Second
The first DVD (1x) transferred data at 1.35MB per second, and the number of X's is that number multiplied by 1.35MB (see list below). Each DVD X is equivalent to nine X's of CD speed because DVD 1x is 1.35MB and CD-ROM 1x is only 150KB. See CD-ROM drives and DVD.

               Data Transfer Rate
    X Rating   (MBytes/sec)

      1x        1.35
      2x        2.70
      2.4x      3.17
      3x        4.05
      4x        5.40
      5x        6.75
      8x       10.80
      10x      13.50
      12x      16.20
      16x      21.60
      22x      29.70
      24x      32.40
      26x      35.10

A Whole Lotta X's

This label comes from a Memorex DVD/CD drive made in 2005. Each "DVD X" is X times 1.35MB. Each "CD X" is X times 150KB.