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每一层 ＤＶＤ盘上的数据均分为导入区（Ｌｅａｄ－ｉｎ Ａｒｅａ）、数据区（Ｐｒｏｇｒａｍ Ａｒｅａ）和导出区（Ｌｅａｄ－ｏｕｔ Ａｒｅａ）三个区域。对双层 ＯＴＰ盘而言，还有一个中间区（Ｍｉｄｄｌｅ Ａｒｅａ）。 ＤＶＤ盘上的数据是按扇区（Ｓｅｃｔｏｒ）形式组织
The data on each layer of DVD disk is divided into three areas: Lead-in Area, Program Area and Lead-out Area. For a two-tier OTP disk, there is also a middle area. The data on the DVD disc is organized in sectors