信息技术.信息交换和存储用数字记录媒体.120mm三层（每盘100GB）BD可重写磁盘

[中文适用范围]： 范围 本文件规定了具有100,0 Gbytes容量的120 mm可重写光学盘的机械、物理和光学特性。它规定了记录和未记录信号的质量、数据格式以及记录方法，从而允许通过此类盘进行信息交换。用户数据可以使用可逆方法多次读取、写入和覆盖。该盘被标识为BD可重写光盘。本文件规定了以下内容：— 一种磁盘类型；— 符合性条件；— 磁盘运行和存储的环境；— 磁盘的机械和物理特性，以便在数据处理系统之间实现机械互换；— 磁盘上的信息格式，包括轨道和扇区的位置；— 所使用的纠错码和编码方法；— 记录在磁盘上的信号特性，使得数据处理系统可以从磁盘读取数据。本文件为磁盘在磁盘驱动器之间的互换提供了依据。结合卷和文件结构的标准，它为数据处理系统之间提供了完整的数据互换。 [外文原描述]： This document specifies the mechanical, physical and optical characteristics of a 120 mm rewritable optical disk with a capacity of 100,0 Gbytes. It specifies the quality of the recorded and unrecorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks. User data can be written, read and overwritten many times using a reversible method. This disk is identified as a BD rewritable disk. This document specifies the following: — the one disk type; — the conditions for conformance; — the environments in which the disk is to be operated and stored; — the mechanical and physical characteristics of the disk, in order to provide mechanical interchange between data processing systems; — the format of the information on the disk, including the physical disposition of the tracks and sectors; — the error-correcting codes and the coding method used; — the characteristics of the signals recorded on the disk, enabling data processing systems to read data from the disk. This document provides for interchange of disks between disk drives. Together with a standard for volume and file structure, it provides for full data interchange between data processing systems.