DVD

DVD

DVD, short for Digital Video Disc or Digital Versatile Disc, is an optical digital disc for data storage which is mainly used for storing huge amount of high-resolution audio-visual materials, such as full-length movies, interactive games, and software. It was first introduced in the U.S. in 1997 and then developed by both computer and film industries from countries such as America and Japan. Most DVDs look similar to regular Compact Disc (CD), but DVD can store information up to 17 GB (17000 MB) whereas CD can only hold up to 700 MB. DVD is either single- or double-sided. Formats of DVD available in stores include DVD-Video, DVD-Audio, DVD-ROM (Read-Only Memory), DVD-E (Erasable), DVD-R (Recordable), DVD-RAM (Random-Access Memory) and DVD +/- RW (ReWritable). DVD is said to be the next best thing after CD, therefore DVD is believed to be able to completely replace the use of CD in the future.