标准摘要
[中文适用范围]： 本国际标准规定了采用热光相变效应实现此类磁盘之间数据交换的 130 毫米光学磁盘盒（ODC）的机械、物理和光学特性。本国际标准规定了两种类型的磁盘：类型 RW（可重写）允许在磁盘的记录表面上多次写入、读取和擦除数据；类型 WORM（一次写入多次读取）允许写入一次的数据被多次读取，该类型使用一次写入多次读取记录材料（写入的标记无法擦除，且尝试修改写入的标记是可检测的）。可以在类型 WORM 磁盘上执行多会话（增量写入操作）记录。该磁盘为双面，每面标称容量为 30.0 Gbytes，磁盘盒（双面）提供标称容量为 60.0 Gbytes。本国际标准规定了以下内容：符合性测试的条件和参考驱动器；磁盘盒应操作和存储的环境；磁盘盒的机械、物理和尺寸特性，以提供数据处理系统之间的机械互换性；磁盘上刻录信息和用户写入信息的格式，包括轨道和扇区的物理分布、纠错码、使用的调制方法；磁盘上刻录信息的特性；磁盘的热光特性，使处理系统能够将数据写入磁盘；磁盘上用户写入数据的最小质量，使数据处理系统能够从磁盘读取数据。本国际标准提供了光学磁盘驱动器之间的互换性。结合卷和文件结构标准，它提供了数据处理系统之间的完整数据互换性。 [外文原描述]： ISO/IEC 11976:2008 specifies the mechanical, physical, and optical characteristics of a 130 mm optical disk cartridge (ODC) that employs thermo-optical Phase Change effects to enable data interchange between such disks. ISO/IEC 11976:2008 specifies two types of disk. Type RW (Rewritable) provides for data to be written, read and erased many times over the recording surfaces of the disk. Type WORM (Write Once Read Many) provides for data once written to be read a multiplicity of times. This type uses a Write Once Read Many times recording material (written marks cannot be erased and attempted modifications of the written marks are detectable). Multisession (incremental write operations) recording may be performed on Type WORM disks. The disk is two-sided with a nominal capacity of 30,0 Gbytes per side and the cartridge (two sides) provides a nominal capacity of 60,0 Gbytes. ISO/IEC 11976:2008 specifies the following: the conditions for conformance testing and the Reference Drive; the environments in which the cartridges are to be operated and stored; the mechanical, physical and dimensional characteristics of the cartridge so as to provide mechanical interchangeability between data processing systems; the format of the information on the disk, both embossed and user-written, including the physical disposition of the tracks and sectors, the error correction codes, the modulation methods used; the characteristics of the embossed information on the disk; the thermo-optical characteristics of the disk, enabling processing systems to write data onto the disk; the minimum quality of user-written data on the disk, enabling data processing systems to read data from the disk. ISO/IEC 11976:2008 provides for interchange between optical disk drives. Together with a standard for volume and file structure, it provides for full data interchange between data processing systems.
英文名称Information technology - Data interchange on 130 mm rewritable and write-once-read-many ultra density optical (UDO) disk cartridges - Capacity: 60 Gbytes per cartridge - Second generation