ISO/IEC 25434:2007
(Main)Information technology — Data interchange on 120 mm and 80 mm optical disk using +R DL format — Capacity: 8,55 Gbytes and 2,66 Gbytes per side (recording speed up to 8x)
Information technology — Data interchange on 120 mm and 80 mm optical disk using +R DL format — Capacity: 8,55 Gbytes and 2,66 Gbytes per side (recording speed up to 8x)
ISO/IEC 25434:2007 specifies the mechanical, physical and optical characteristics of 120 mm recordable optical disks with capacities of 8,55 Gbytes and 17,1 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 once and read many times using a non-reversible method. These disks are identified as +R DL. ISO/IEC 25434:2007 also specifies 80 mm disks with capacities of 2,66 Gbytes and 5,32 Gbytes. These disks have the same characteristics as the 120 mm disks, except for some parameters related to the smaller dimensions. All parameters unique for the 80 mm disks are specified in a normative annex. ISO/IEC 25434:2007 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. ISO/IEC 25434:2007 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.
Technologies de l'information — Échange de données sur disque optique de 120 mm et 80 mm utilisant le format +R DL — Capacité: 8,55 Go et 2,66 Go par face (vitesse d'enregistrement 8x)
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 25434
Second edition
2007-06-15
Information technology — Data
interchange on 120 mm and 80 mm
optical disk using +R DL format —
Capacity: 8,55 Gbytes and 2,66 Gbytes
per side (recording speed up to 8x)
Technologies de l'information — Échange de données sur disque
optique de 120 mm et 80 mm utilisant le format +R DL — Capacité:
8,55 Go et 2,66 Go par face (vitesse d'enregistrement 8x)
Reference number
ISO/IEC 25434:2007(E)
©
ISO/IEC 2007
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ISO/IEC 25434:2007(E)
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ii © ISO/IEC 2007 – All rights reserved
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ISO/IEC 25434:2007(E)
Contents Page
Foreword. vii
Introduction . viii
Section 1 - General . 1
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 . 5
5.1 Representation of numbers . 5
5.2 Names . 5
6 Abbreviations and acronyms . 6
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
8.4 Light fastness. 8
9 Reference Drive. 9
9.1 Optical system . 9
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. 19
10.9 Remark on tolerances . 19
11 Mechanical characteristics . 19
11.1 Mass . 19
11.2 Moment of inertia. 19
11.3 Dynamic imbalance . 19
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ISO/IEC 25434:2007(E)
11.4 Axial runout . 19
11.5 Radial runout . 20
12 Optical characteristics in the Information Zone . 21
12.1 Index of refraction. 21
12.2 Thickness of the substrate. 21
12.3 Reflectivity . 22
12.4 Birefringence . 22
12.5 Angular deviation. 22
Section 3 - Format of information. 23
13 Data format . 23
13.1 Data Frames. 23
13.2 Scrambled Frames . 26
13.3 ECC Blocks. 26
13.4 Recording Frames. 28
13.5 Modulation and NRZI conversion. 28
13.6 Physical Sectors . 29
13.7 Layout of a Recording UNit (RUN). 30
13.8 d.c. component suppression control. 31
14 Track format. 32
14.1 Track shape . 32
14.2 Track path . 33
14.3 Track pitch . 33
14.4 Track layout . 33
Section 4 - Format of the Information Zone . 56
15 General description of the Information Zone . 56
16 Layout of the Information Zone of a Single-session disk. 56
16.1 Usage of the Data Zone . 58
16.2 Physical Sector Numbers (PSNs). 60
17 Inner Drive Areas . 61
17.1 Initial Zone / Final Zone . 61
17.2 Inner Disk Test Zones. 62
17.3 Count Zone Run-in / Dummy Zone. 62
17.4 Inner Disk Count Zones. 62
17.5 Inner Disk Administration Zone. 62
17.6 Table of Contents (TOC) Zone . 63
18 Lead-in Zone. 68
18.1 Guard Zone 1 . 69
18.2 Reserved Zone 1 . 69
18.3 Reserved Zone 2 . 69
18.4 Inner Disk Identification Zone. 69
18.5 Reserved Zone 3 . 69
18.6 Reference Code Zone . 70
18.7 Buffer Zone 1 . 70
18.8 Control Data Zone . 70
18.9 Buffer Zone 2 . 73
19 Data Zone. 73
20 Middle Zones . 73
20.1 Buffer Zones 3 . 75
20.2 Reserved Zones . 75
20.3 Guard Zones 2 . 75
21 Outer Drive Areas. 75
21.1 Outer Disk Administration Zones. 75
21.2 Outer Disk Count Zones . 76
21.3 Dummy Zone / Count Zone Run-in. 77
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ISO/IEC 25434:2007(E)
21.4 Outer Disk Test Zone. 77
21.5 Guard Zones 3. 77
22 Lead-out Zone . 77
22.1 Lead-out Zone at finalization . 77
22.2 Lead-out Zone at closing of first Session . 78
23 Multi-session Layout . 79
23.1 Intro . 80
23.2 Data Zone. 80
23.3 Closure. 80
24 Sequential recording in Fragments . 81
24.1 Opening a Session. 81
24.2 Closing a Session. 83
24.3 Finalizing the disk. 84
25 Assignment of Logical Sector Numbers (LSNs). 84
26 Disk Control Blocks. 84
26.1 General format of Disk Control Blocks. 85
26.2 Format of the Session DCB (SDCB). 86
Section 5 - Characteristics of the groove. 90
27 General. 90
28 Method of testing. 91
28.1 Environment . 91
28.2 Reference Drive. 91
28.3 Definition of signals. 91
29 Characteristics of the groove signals. 92
29.1 Phase depth. 92
29.2 Push-pull signal . 92
29.3 Track Cross signal. 93
29.4 Normalized wobble signal. 93
29.5 Characteristics of the wobble. 93
Section 6 - Characteristics of the recording layer. 94
30 Method of testing. 94
30.1 Environment . 94
30.2 Reference Drive. 94
30.3 Write conditions. 95
30.4 Measurement conditions . 97
31 Characteristics of the recorded signals . 97
31.1 Channel bit length. 97
31.2 Definition of signals. 97
31.3 Read stability. 99
32 Additional testing conditions . 99
32.1 Test environment. 99
32.2 Definition of signals. 100
33 Quality of the recording layer. 102
33.1 Defects . 102
33.2 Data errors. 102
Section 7 - Characteristics of user data . 103
34 Method of testing. 103
34.1 Environment . 103
34.2 Reference Drive. 103
35 Minimum quality of a Recording Unit . 104
35.1 Tracking . 104
35.2 User-written data. 104
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ISO/IEC 25434:2007(E)
Annex A (normative) 80 mm +R DL disk . 105
Annex B (normative) Structure for Extended format information in the Data Zone. 109
Annex C (normative) Measurement of light reflectivity. 112
Annex D (normative) Measurement of birefringence. 114
Annex E (normative) Measuring conditions for operation signals . 117
Annex F (normative) Measurement of the differential phase tracking error . 120
Annex G (normative) The write pulse wave form for testing . 124
Annex H (normative) 8-to-16 Modulation . 129
Annex I (normative) Optimum Power Control and Recording Conditions . 137
Annex J (informative) Running OPC. 140
Annex K (informative) Wavelength dependency . 141
Annex L (informative) Explanation about the usage of the reference servos. 146
Annex M (informative) Measurement of the groove wobble amplitude . 151
Annex N (informative) Light fastness of the disk. 153
Annex O (informative) Transportation. 154
Annex P (informative) Video Content Protection System . 155
Annex Q (informative) How to use the Physical format information in ADIP. 156
Annex R (informative) Values to be Implemented in Existing and Future Specifications . 158
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ISO/IEC 25434:2007(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 25434 was prepared by Ecma International (as ECMA-364) 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.
This second edition cancels and replaces the first edition (ISO/IEC 25434:2006), which has been technically
revised.
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ISO/IEC 25434:2007(E)
Introduction
Ecma Technical Committee TC 31 was established in 1984 for the s
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