Standard ECMA-274
Data Interchange on 120 mm Optical Disk
using +RW Format - Capacity: 3,0 Gbytes and 6,0 Gbytes
2nd edition (June 1999)
This Ecma Standard specifies the mechanical, physical and optical
characteristics of 120 mm rewritable optical disks with capacities
of 3,0 Gbytes and 6,0 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. The data can be written, read and overwritten
many times using the phase change method. These disks are identified
as +RW.
This Ecma Standard specifies
- two related but different Types of this disk,
- the conditions for conformance,
- the environments in which the disk is to be tested, operated
and stored,
- the mechanical, physical and dimensional characteristics of
the disk, so as 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,
- the characteristics of the signals recorded on the disk, thus
enabling data processing systems to read the data from the disk.
This Ecma Standard provides for the interchange of disks between
optical disk drives. Together with a standard for volume and file
structure, it provides for full data interchange between data
processing systems.
The following file can be freely downloaded:
| File name |
Size (Bytes) |
Content |
| ECMA-274.pdf |
1 356 413 |
Acrobat (r) PDF file |
The previous replaced "historical" edition of this Ecma Standard is available
here.
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