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随着人们物质文化生活水平的提高,VCD 由于其片源丰富、价格低廉、使用方便,受到消费者欢迎。但其250线甚至因制作原因,清晰度比录像机还差,广大消费者对它已不能再满足和迁就了。CVD 是VCD 的自然升级产品,介于 VCD与 DVD 之间,价格比 VCD 高出200元左右,不及 DVD 价格的一半,其清晰度达到350线,在现有电视机上能达到中央电视台的收看效果。再则丰富的 VCD 碟片也成为 CVD的一大软件来源,大量的 CVD 碟
As people’s material and cultural living standards improve, VCD because of its rich sources, low prices, easy to use, welcomed by consumers. However, its 250-line or even because of production reasons, the definition is worse than the video recorder, the vast number of consumers it can no longer meet and accommodate. CVD is a natural upgrade of VCD products, between VCD and DVD, the price is about 200 yuan higher than the VCD, less than half the price of DVD, its resolution to 350 lines, in the existing television can reach CCTV viewing . Then rich VCD discs have also become a major source of CVD software, a large number of CVD discs