ISO/IEC 26925:2006
(Main)Information technology — Digital storage media for information interchange — Data Interchange on 120 mm and 80 mm Optical Disk using +RW HS Format — Capacity: 4,7 and 1,46 Gbytes per Side (Recording speed 8X)
Information technology — Digital storage media for information interchange — Data Interchange on 120 mm and 80 mm Optical Disk using +RW HS Format — Capacity: 4,7 and 1,46 Gbytes per Side (Recording speed 8X)
ISO/IEC 26925:2006 specifies the mechanical, physical and optical characteristics of 120 mm rewritable optical disks with capacities of 4,7 Gbytes and 9,4 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 HS (High Speed). ISO/IEC 26925:2006 also specifies 80 mm disks with capacities of 1,46 Gbytes and 2,92 Gbytes. These disks have the same characteristics as the 120 mm disks, except for some parameters related to the smaller dimensions.
Technologies de l'information — Supports de stockage numérique pour échange de données — Échange de données sur disque optique de 120 mm et 80 mm en utilisant le format +RW HS — Capacité: 4,7 Gbytes et 1,46 Gbytes par face (vitesse d'enregistrement de 8X)
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INTERNATIONAL ISO/IEC
STANDARD 26925
First edition
2006-11-01
Information technology — Digital storage
media for information interchange — Data
Interchange on 120 mm and 80 mm
Optical Disk using +RW HS Format —
Capacity: 4,7 and 1,46 Gbytes per Side
(Recording speed 8X)
Technologies de l'information — Supports de stockage numérique pour
échange de données -— Échange de données sur disque optique de
120 mm et 80 mm en utilisant le format +RW HS — Capacité:
4,7 Gbytes et 1,46 Gbytes par face (vitesse d'enregistrement de 8X)
Reference number
ISO/IEC 26925:2006(E)
©
ISO/IEC 2006
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ISO/IEC 26925:2006(E)
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ii © ISO/IEC 2006 – All rights reserved
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ISO/IEC 26925:2006(E)
Contents Page
Foreword .vii
Introduction.viii
1 Scope.1
2 Conformance.1
2.1 Optical Disk.1
2.2 Generating system .2
2.3 Receiving system .2
2.4 Compatibility statement.2
3 Normative references.2
4 Terms and definitions .2
5 Conventions and notations .4
5.1 Representation of numbers.4
5.2 Names.5
6 List of acronyms.5
7 General description of the optical disk.6
8 General Requirements .7
8.1 Environments.7
8.2 Safety requirements.8
8.3 Flammability.8
9 Reference Drive .8
9.1 Optical system.8
9.2 Optical beam .9
9.3 Read channel 1 .10
9.4 Disk clamping .10
9.5 Rotation of the disk.11
9.6 Wobble channel (Read channel 2).11
9.7 Tracking channel (Read channel 2).11
9.8 Reference servo systems .11
Section 2 - Dimensional, mechanical and physical characteristics of the disk.14
10 Dimensional characteristics.14
10.1 Reference Planes.15
10.2 Overall dimensions .16
10.3 First transition area.16
10.4 Second transition area.17
10.5 Clamping Zone.17
10.6 Third transition area.17
10.7 Information Zone .17
10.8 Rim area.18
10.9 Remark on tolerances.18
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ISO/IEC 26925:2006(E)
11 Mechanical characteristics. 18
11.1 Mass. 18
11.2 Moment of inertia. 18
11.3 Dynamic imbalance . 18
11.4 Axial runout. 18
11.5 Radial runout. 19
12 Optical characteristics in the Information Zone.20
12.1 Index of refraction. 20
12.2 Thickness of the substrate . 20
12.3 Reflectivity. 20
12.4 Birefringence. 20
12.5 Angular deviation. 21
Section 3 - Format of information . 21
13 Data format. 21
13.1 Data Frames.
22
13.2 Scrambled Frames. 24
13.3 ECC Blocks. 25
13.4 Recording Frames . 26
13.5 Modulation and NRZI conversion. 27
13.6 Physical Sectors . 27
13.7 Layout of a Recording UNit (RUN) . 28
13.8 d.c. component suppression control . 29
14 Track format . 30
14.1 Track shape. 30
14.2 Track path. 31
14.3 Track pitch. 31
14.4 Track layout. 31
Section 4 - Format of the Information Zone . 51
15 General description of the Information Zone. 51
16 Layout of the Information Zone. 51
16.1 Physical Sector Numbers (PSNs). 52
17 Lead-in Zone. 52
17.1 Initial Zone. 52
17.2 Inner Disk Test Zone . 52
17.3 Inner Drive Test Zone . 52
17.4 Guard Zone 1. 53
17.5 Reserved Zone 1 . 53
17.6 Reserved Zone 2 . 53
17.7 Inner Disk Identification Zone . 54
17.8 Reserved Zone 3 . 54
17.9 Reference Code Zone. 54
17.10 Buffer Zone 1. 54
17.11 Control Data Zone. 54
17.12 Buffer Zone 2 .56
18 Data Zone .56
19 Lead-out Zone.57
19.1 Buffer Zone 3 .57
19.2 Outer Disk Identification Zone .57
19.3 Guard Zone 2 .57
19.4 Reserved Zone 4.57
19.5 Outer Drive Test Zone.58
19.6 Outer Disk Test Zone .58
19.7 Guard Zone 3 .58
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ISO/IEC 26925:2006(E)
20 Assignment of Logical Sector Numbers (LSNs) .58
21 Formatting.58
21.1 Pre-formatting.59
21.2 Background formatting.59
21.3 Sequential recording without formatting.60
22 Disk Control Blocks .61
22.1 General format of Disk Control Blocks .61
22.2 Format of the Formatting DCB (FDCB) .63
22.3 Format of the Write inhibit DCB (WDCB) .67
Section 5 - Characteristics of the groove .69
23 General.69
24 Method of testing.69
24.1 Environment.69
24.2 Reference Drive .69
24.3 Definition of signals .70
25 Characteristics of the groove signals .70
25.1 Phase depth .70
25.2 Push-pull signal.70
25.3 Track Cross signal .71
25.4 Normalized wobble signal .71
25.5 Characteristics of the wobble .71
Section 6 - Characteristics of the recording layer .71
26 Method of testing.71
26.1 Environment.72
26.2 Reference Drive .72
26.3 Write conditions .73
26.4 Measurement conditions .73
27 Characteristics of the recorded signals . 74
27.1 Channel bit length. 74
27.2 Definition of signals. 74
27.3 Read stability. 76
28 Additional testing conditions . 76
28.1 Test environment. 76
28.2 Definition of signals. 77
29 Quality of the recording layer. 79
29.1 Defects. 79
29.2 Data errors. 79
Section 7 - Characteristics of user data . 80
30 Method of testing. 80
30.1 Environment. 80
30.2 Reference Drive. 80
31 Minimum quality of a Recording Unit . 81
31.1 Tracking. 81
31.2 User-written data. 81
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ISO/IEC 26925:2006(E)
Annex A (normative) 80 mm disk . 82
Annex B (normative) Structure for Extended format information in the Data Zone . 85
Annex C (normative) Measurement of light reflectivity. 88
Annex D (normative) Measurement of birefringence . 90
Annex E (normative) Measuring conditions for operation signals . 93
Annex F (normative) Measurement of the differential phase tracking error. 96
Annex G (normative) The write pulse wave form for testing. 100
Annex H (normative) 8-to-16 Modulation. 103
Annex I (normative) Optimum Power Control . 112
Annex J (normative) Logical to Physical address translation . 117
Annex K (informative) Explanation about the usage of the reference servos . 118
Annex L (informative) Measurement of the groove wobble amplitude. 123
Annex M (informative) Transportation . 125
Annex N (informative) Defect Management and Physical Formatting. 126
Annex O (informative) Video Content Protection System .127
Annex P (informative) How to use the Physical format information in ADIP.128
Annex Q (informative) Values to be Implemented in Existing and Future Specifications .130
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ISO/IEC 26925:2006(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 26925 was prepared by TC31 (as ECMA-371) and was adopted, under a special “fast-track
procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval
by national bodies of ISO and IEC.
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ISO/IEC 26925:2006(E)
Introduction
Ecma Technical Committee TC31 was established in 1984 for the standardization of Optical Disks and
Optical Disk Cartridges (ODC). Since its establishment, the Committee has made major contributions
to ISO/IEC toward the development of International Standards for 80 mm, 90 mm, 120 mm, 300 mm
and 356 mm media. Numerous standards have been developed by TC31 and published by Ecma,
almost all of which have also been adopted by ISO/IEC under the fast-track procedure as International
Standards.
In February 2002, a group of companies proposed to TC31 to develop a standard for 120 mm
rewritable optical disks using Phase Change recording technology and based on the DVD - Read-Only
standard (ISO/IEC 16448) and the +RW format (ISO/IEC 16969). TC31 adopted this project and started
the work that has resulted in ISO/IEC 17341.
In February 2005, a proposal was made to TC31 to develop a new International Standard that supports
high-speed recording of 120 mm and 80 mm rewritable disks based on the same technology as
ISO/IEC 17341.
This International Standard specifies two Types of rewritable optical disks, one (Type S) making use of
recording on only a single side of the disk and yielding a nominal capacity of 4,7 or 1,46 Gbytes per
disk and the other (Type D) making use of recording on both sides of the disk and yielding a nominal
capacity of 9,4 or 2,92 Gbytes per disk.
This International Standard, taken together with a standard for volume and file structure, such as for
instance developed in Ecma Technical Committee TC15, provides the requirements for information
interchange between systems.
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INTERNATIONAL STANDARD ISO/IEC 26925:2006(E)
Information technology — Digital storage media for information
interchange — Data Interchange on 120 mm and 80 mm Optical
Disk using +RW HS Format — Capacity: 4,7 and 1,46 Gbytes per
Side (Recording speed 8X)
1 Scope
This International Standard specifies the mechanical, physical and optical characteristics of 120 mm
rewritable optical disks with capacities of 4,7 Gbytes and 9,4 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 HS (High Speed).
This International Standard also specifies 8
...
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