ISO 9660:1988

Specifies the volume and file structure of compact read-only optical disks (CD-ROM) for the information interchange between information processing systems. Defines:
- the attributes of the volume and the descriptors recorded on it;
- the relationship among volumes of a volume set; the placement of files;
- the attributes of the files;
- recorded structures intended for input or output data streams of an application program when required to be organized as sets of records;
- three nested levels of medium interchange;
- two nested levels of implementation;
- requirements for the processes provided within information processing systems.