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Digital Versatile Disc

 Digital Versatile Disc
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The development of the versatile DVD format (Digital Versatile Disc) was started in 1993, when Toshiba and Time Warner started developing recording technology compatible with CDs. The first DVD standard was born in 1996 but part of the standard remains still, in 2001, undefined.

Compared to the VHS system DVD has advantages:

  • The greatest advantage as far as the film is concerned is the quality of the picture: it is sharp, clear and the colors are bright (the picture quality is about 200 % better than that of a VHS tape).
  • The film format. Television uses a square-like 4:3 format while the films have a broader format.

When a film is transferred onto video, there are two options:

  1. changing the picture into a 4:3 TV format. This is called cropping. It changes the picture and changes essentially the composition intended by the filmmakers.

  2. transferring the picture as it is, which leaves a considerable part of the TV screen black (the bars below and above the picture).


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