Why not buying a DVD player?

What's a DVD player? I mean, we often watch films on DVD format but we don't know how a player works. Read here and you'll find useful info about it!

A DVD player is a device that plays discs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards.

A DVD player completes different tasks:

  • It reads a DVD disc in ISO – UDF version 1.2 format
  • It optionally decrypts the data with either CSS and/or Macrovision
  • It reads and obeys the DVD's Regional lockout codes and displays a warning if the player is not authorised to play the DVD
  • It decodes the MPEG-2 video stream with a maximum of 10 Mbit/s (peak) or 8 Mbit/s (continuous)
  • It decodes sound in MP2, PCM or AC-3 format and outputs (with optional AC-3 to stereo down sampling) on stereo connector, optical or electric digital connector
  • It outputs a video signal, either an analog one on the composite, S-Video, SCART, or component video connectors, or a digital one on the DVI or HDMI connectors
 
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If you want to know something about the costs, retail prices for such a device, depending on its optional features (such as digital sound or video output), start between 30 and 80 Euros. They are usually cheaper than videocassettes.

The first DVD players were introduced in Japan in November 1996 and were first available in the United States in March 1997. The first commercially available DVD player in the United States was the Sony DVP-S7000. The cost was $970 USD.
The largest producer of DVD players is China; in 2002 they produced 30 million players, more than 70% of the world output.

These producers have to pay a lot in license fees, to the patent holders of the DVD technology as well as for MPEG-2 licenses. To avoid these fees, China has developed the Enhanced Versatile Disc standard as successor of DVD.

Successors to the DVD player are the HD DVD player and the Blu-ray Disc player. They use two incompatible technologies that reproduce higher quality video images than standard DVD.
Will they be as famous as DVD players have been? We'll see.

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