What is DVD format?

ByCary Perone 2019-12-25 1818

DVD (Digital Versatile/Video Disc), is a digital multi-purpose optical disc or digital video disc or digital video disc. Video DVD uses MPEG2 compression technology to store images. For other purposes, computer data and audio can also be stored. DVD integrates computer technology, optical recording technology and film and television technology, and its purpose is to meet the needs of people for storage media with large storage capacity and high performance. DVD CD-ROM has not only been widely used in the audio / video field, but also will promote the development of publishing, broadcasting, communications, WWW and other industries.

DVD Format Classification

DVD has five formats, namely DVD-VIDEO (which can be divided into movie format and personal computer format), DVD-ROM, DVD-R, DVD-RAM, and DVD-AUDIO

DVD-Video for watching movies and other visual entertainment. If it is double-sided and double-layer on each side, the total capacity can reach 17GB. The basic technology of

DVD-ROM is the same as DVD Video, but it contains a file format that is compatible with your computer. Used to store data. The capacity of

DVD-R is 4.7GB. In fact, it is also used for professional creation and ordinary users to use two versions. Users can only write once using DVD-R.

DVD-RAM this enables DVD to be used as a virtual hard disk with random access. The original drive is 2.6GB, and the capacity can be increased to 4.7GB on each side. It can be rewritten 100000 times.

DVD-RW is similar to DVD-RAM, but uses sequential read-write access, more like DVD-R than hard disk. The read-write capacity of each side is 4.7GB. It can be rewritten 1000 times.

DVD-Audio 's latest audio format is twice as fidelity as standard CD. & nbsp;

Main features

● Are high-quality video programs using MPEG-2 standard

● Can support 4:3 full screen, 4:3PS, 16:9 deformed wide screen and other picture formats

● Support up to 8 tracks of digital audio and 32 subtitles

● Each track can have up to 8 channels

● Up to 9 viewing angles

● Video automatic seamless switching

● With menus and simple interaction

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