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Date Posted: 08:05:17 05/19/00 Fri
Author: 小朋友
Author Host/IP: klt.pacific.net.hk / 202.14.68.246
Subject: CD

我想知鐳射唱碟是否可以永久保存?因我聽說碟中的物料會隨日月而氧化。如果不能,那在物理上最多又可以保存多久呢?

另外,我找到一些cd是不是圓形的,那樣是怎樣讀取cd的資料?cd讀取資料不是用一些光射向cd表面,然後反射回來讀取嗎?(如果有錯請指正)

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