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DVD是一种光碟储存媒体,直径120毫米,外表虽与传统CD光碟相似,但内容却高出多倍,可储存影像、音像或电脑数据。DVD曾代表Digital Video Disc或Digital Versatile Disc,但现在一般已不代表任何文字的缩写。 DVD设计出来的目的是希望以单一种数码格式来解决家庭娱乐、电脑及商业上资料储存的需要,取代音乐CD、录影带、LD影碟、CDROM电脑光碟,甚至可能取代电子游戏盒。 DVD有单双层及单双面的类别 传统CD光碟只有单面单层,容纳约650MB(0.65GB)的数据,但DVD则有单面单层、单面双层、双面单层,双面双层等多种,容量各有不同,最高可达17GB。目前市场上出售的DVD碟,除标注片长若干分钟外,有部分会标注属于哪一种。
DVD is a compact disc storage media with a diameter of 120 mm and looks like a traditional CD but with a multiple of multiple times for storing video, audiovisual or computer data. DVD has represented Digital Video Disc or Digital Versatile Disc, but now generally does not represent any acronym for the text. The DVD was designed to solve the need for home entertainment, computer and business data storage in a single digital format, replacing music CDs, video tapes, LD discs, CD-ROMs, and possibly even electronic video game boxes. DVD has a single double-sided and single-sided types of traditional CD-ROM only single-sided single-layer, to accommodate about 650MB (0.65GB) of data, but the DVD is single-sided, single double, double double, double Double-sided and so on a variety of different capacities, up to 17GB. DVD discs currently on the market, in addition to a few minutes long label, some will be labeled which belongs to.