BS 7061:1989

National foreword
Committees responsible
Specification
Section one: General
1. Scope and field of application
2. Conformance
3. References
4. Definitions
5. Notation
Section two: Requirements for the medium
6. Volume structure
7. Recording of descriptor fields
8. Volume Descriptors
9. File and Directory Descriptors
10. Levels of interchange
Section three: Requirements for systems
11. Requirements for the description of systems
12. Requirements for an originating system
13. Requirements for a receiving system
Annex
A. ISO 646: International Reference Version (IRV)
Tables
1. Volume Descriptor
2. Boot Record
3. Volume Descriptor Set Terminator
4. Primary Volume Descriptor
5. Date and Time Format
6. Supplementary Volume Descriptor
7. Volume Partition Descriptor
8. Format of a Director Record
9. Recording Data and Time
10. File flags
11. Path Table Record
12. Extended Attribute Record
13. Permissions
14. Untitled
15. Untitled

Explains the volume and file structure of compact read only optical disks for the interchange of information between users of information processing systems. It specifies 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, record structures, three nested levels of medium interchange, two nested levels of implementation and requirements for the processes which are provided within information processing systems, to enable information to be interchanged between different systems.

This International Standard specifies the volume and file structure of compact read only optical disks (CD-ROM) for the interchange of information between users of information processing systems.

This International Standard specifies

• 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;
• record structures intended for use in the input or output data streams of an application program when such data streams are required to be organized as sets of records;
• three nested levels of medium interchange;
• two nested levels of implementation;
• requirements for the processes which are provided within information processing systems, to enable information to be interchanged between different systems, utilizing recorded CD-ROM as the medium of interchange; for this purpose it specifies the functions to be provided within systems which are intended to originate or receive CD-ROM which conform to this International Standard.