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随着经济发展、社会进步和广播电视事业的蓬勃发展,各家电视台和音像出版单位存储保存的音像资料不断增长,传统的使用磁带进行存储音像资料的方式缺陷日益突出,使用更先进的存储技术高质量地长期保存音像资料已是形势所需。近年DVD光盘技术已日渐成熟,用DVD光盘可高质量地长期保存音像资料已引起了人们的关注。 DVD是Digital Video(或Versatile)Disk数字视盘(或数字多用途光盘)的缩写,它是以数字方式存储信息。DVD光盘与我们常用的VCD盘片差不多,盘片直径为12cm,厚度为1.2mm。由于DVD采用了增加记录密度、缩短数据轨距、增加轨数、双面双层等新技术,使得DVD盘片的数据容量大大增加,
With the economic development, social progress and the vigorous development of the radio and television industry, audiovisual materials stored and preserved by various TV stations and audiovisual publishers have been continuously increasing. The traditional ways of using tapes to store audiovisual materials have become increasingly prominent, using more advanced storage technologies Long-term preservation of high-quality video and audio data is the situation needs. In recent years, DVD disc technology has matured, with DVD discs can be high-quality long-term preservation of audiovisual information has aroused people’s attention. DVD is an acronym for Digital Video (or Versatile) Disk Digital Video Disc (or Digital Versatile Disc), which stores information digitally. DVD discs and our commonly used VCD discs about the same, the disc diameter of 12cm, a thickness of 1.2mm. Due to the DVD to increase the recording density, shorten the data track, increase the number of tracks, double-sided double-layer and other new technologies, making DVD disk data capacity increased significantly,