ISO/IEC 12862:2011 Information technology - 120 mm (8,54 Gbytes per side) and 80 mm (2,66 Gbytes per side) DVD recordable disk for dual layer (DVD-R for DL)
International Organization for Standardization (ISO)
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ISO/IEC 12862:2011
Scope
This International Standard specifies the mechanical, physical and optical characteristics of a 120 mm and an
80 mm dual layer DVD recordable disk to enable the interchange of such disks. It specifies the quality of the
pre-recorded, unrecorded and recorded signals, the format of the data, the format of the information zone, the
format of the unrecorded zone, and the recording method, thereby allowing for information interchange by
means of such disks. This disk is identified as a DVD recordable disk for dual layer (DVD-R for DL).
This International Standard specifies the following:
- 120 mm and 80 mm nominal diameter disks that can be either single- or double-sided;
- the conditions for conformance;
- the environments in which the disk is to be operated and stored;
- the mechanical and physical characteristics of the disk, so as to provide mechanical interchange between
data processing systems;
- the format of the pre-recorded information on an unrecorded disk, including the physical disposition of the
tracks and sectors, the error correcting codes and the coding method used;
- the format of the data and the recorded 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 from pre-recorded and unrecorded areas on the disk, enabling data
processing systems to read the pre-recorded information and to write to the disks;
- the characteristics of the signals recorded on the disk, enabling data processing systems to read the data
from the disk.
This International Standard 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.
ISO/IEC 12862:2011 history
2011ISO/IEC 12862:2011 Information technology - 120 mm (8,54 Gbytes per side) and 80 mm (2,66 Gbytes per side) DVD recordable disk for dual layer (DVD-R for DL)
2009ISO/IEC 12862:2009 Information technology — 120 mm (8,54 Gbytes per side) and 80 mm (2,66 Gbytes per side) DVD recordable disk for dual layer (DVD-R for DL)