Enhanced Versatile Disc

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Enhanced Versatile Disc logo

The Enhanced Versatile Disc ( EVD ) is an alternative to video DVD , developed in and for China . Physically, the EVD does not differ from the DVD. It sets the UDF - filesystem and can be read by conventional PC DVD drives. The differences to video DVD are in the directory structure and the codecs used .

The development of the EVD began in 1999 . The main motive for developing a new standard was to avoid license fees that have to be paid to the DVD forum and MPEG for the production of video DVD players (DVD players) . For example, EVD does not use MPEG-2 video as a video codec , but rather the proprietary codecs VP5 and VP6 from On2 Technologies , which were specially developed for this purpose and for which there are presumably lower license costs. In addition, these codecs offer better compression than MPEG-2 video. It is even possible to store high-resolution video material on an EVD, but only for films with a duration of up to around two hours or if there are compromises in image quality.

The audio codec used is Enhanced Audio Codec (EAC) 2.0, which supports the audio formats mono , stereo and 5.1 channel surround sound.

The first EVD was presented on November 18, 2003 . A dispute soon arose between On2 Technologies and Beijing E-World (the consortium that developed the standard) over the correct billing of license fees. So far, the EVD, although supported by the Chinese government, does not seem to have found widespread use and its future is still uncertain, also because there is allegedly little support from the major film studios. However, the approach of achieving better quality of the video material not through a higher capacity of the medium but through more efficient coding can be regarded as interesting.

According to Foxnews, the EVD was also not very well received by the population between 2003 and 2004, so that it was not further developed at the time.

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