ISO/IEC 29642:2007

INTERNATIONAL ISO/IEC
STANDARD 29642
First edition
2007-12-01


Information technology — Data
interchange on 120 mm and 80 mm
optical disk using +RW DL format —
Capacity: 8,55 Gbytes and 2,66 Gbytes
per side (recording speed 2,4x)
Technologies de l'information — Échange de données sur disques
optiques de 120 mm et 80 mm utilisant le format +RW DL — Capacité:
8,55 Go et 2,66 Go par face (vitesse d'enregistrement 2,4x)



Reference number
ISO/IEC 29642:2007(E)
©
ISO/IEC 2007

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ISO/IEC 29642:2007(E)
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ISO/IEC 29642:2007(E)
Contents Page
Foreword. vii
Introduction . viii
1 Scope . 1
2 Conformance. 1
2.1 Optical disk. 1
2.2 Generating system. 1
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 . 7
8.3 Flammability . 8
9 Reference Drive. 8
9.1 Optical system . 8
9.2 Optical beam . 9
9.3 Read channel 1. 9
9.4 Disk clamping. 9
9.5 Rotation of the disk . 10
9.6 Wobble channel (Read channel 2) . 10
9.7 Tracking channel (Read channel 2) . 10
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. 15
10.3 First transition area . 16
10.4 Second transition area . 16
10.5 Clamping Zone . 16
10.6 Third transition area . 16
10.7 Information Zone. 17
10.8 Rim area. 18
10.9 Remark on tolerances . 18
11 Mechanical characteristics . 18
11.1 Mass . 18
11.2 Moment of inertia. 19
11.3 Dynamic imbalance . 19
11.4 Axial runout . 19
11.5 Radial runout. 19
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ISO/IEC 29642:2007(E)
12 Optical characteristics in the Information Zone . 19
12.1 Index of refraction. 19
12.2 Thickness of the substrate. 20
12.3 Reflectivity . 20
12.4 Birefringence . 21
12.5 Angular deviation. 21
Section 3 – Format of information. 22
13 Data format . 22
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 . 28
13.7 Layout of a Recording UNit (RUN). 29
13.8 d.c. component suppression control. 30
14 Track format. 32
14.1 Track shape . 32
14.2 Track path . 32
14.3 Track pitch . 32
14.4 Track layout . 32
Section 4 – Format of the Information Zone. 51
15 General description of the Information Zone . 51
16 Layout of the Information Zone . 52
16.1 Usage of the Data Zone . 52
16.2 Physical Sector Numbers (PSNs). 53
17 Lead-in Zone. 54
17.1 Initial Zone . 54
17.2 Inner Disk Test Zone. 54
17.3 Guard Zone 1 . 55
17.4 Reserved Zone 1 . 55
17.5 Reserved Zone 2 . 55
17.6 Inner Disk Identification Zone. 56
17.7 Reserved Zone 3 . 56
17.8 Reference Code Zone . 56
17.9 Buffer Zone 1 . 56
17.10 Control Data Zone . 56
17.11 Buffer Zone 2 . 59
18 Data Zone. 59
19 Middle Zones . 59
19.1 Buffer Zones 3 . 60
19.2 Reserved Zones 4 . 60
19.3 Guard Zones 2 . 60
20 Outer Drive Areas. 61
20.1 Reserved Zone 5 . 62
20.2 Outer Disk Test Zone . 62
20.3 Guard Zone 3 . 62
21 Lead-out Zone. 62
21.1 Buffer Zone 4 . 63
21.2 Inner Disk Test Zone. 63
21.3 Final Zone . 63
22 Assignment of Logical Sector Numbers (LSNs). 63
23 Formatting. 63
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ISO/IEC 29642:2007(E)
23.1 Pre-formatting . 64
23.2 Background formatting . 64
23.3 Sequential recording without formatting .67
24 Disk Control Blocks. 69
24.1 General format of Disk Control Blocks. 69
24.2 Format of the Formatting DCB (FDCB).71
24.3 Format of the Write inhibit DCB (WDCB).77
Section 5 – Characteristics of the groove. 79
25 General. 79
26 Method of testing. 79
26.1 Environment . 79
26.2 Reference Drive. 79
26.3 Definition of signals. 80
27 Characteristics of the groove signals. 80
27.1 Phase depth. 80
27.2 Push-pull signal . 80
27.3 Track Cross signal. 81
27.4 Normalized wobble signal. 81
27.5 Characteristics of the wobble. 81
Section 6 – Characteristics of the recording layer. 82
28 Method of testing. 82
28.1 Environment . 82
28.2 Reference Drive. 82
28.3 Write conditions. 83
28.4 Measurement conditions . 83
29 Characteristics of the recorded signals . 84
29.1 Channel bit length. 84
29.2 Definition of signals. 84
29.3 Read stability. 86
30 Additional testing conditions . 86
30.1 Test environment. 86
30.2 Definition of signals. 87
31 Quality of the recording layer. 89
31.1 Defects . 89
31.2 Data errors. 90
Section 7 – Characteristics of user data . 91
32 Method of testing. 91
32.1 Environment . 91
32.2 Reference Drive. 91
33 Minimum quality of a Recording Unit . 92
33.1 Tracking . 92
33.2 User-written data. 92
Annex A (normative) 80 mm +RW DL disk . 93
Annex B (normative) Structure for Extended format information in the Data Zone . 98
Annex C (normative) Measurement of light reflectivity. 101
Annex D (normative) Measurement of birefringence . 104
Annex E (normative) Measuring conditions for operation signals . 107
Annex F (normative) Measurement of the differential phase tracking error. 110
Annex G (normative) The write pulse wave form for testing. 114
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ISO/IEC 29642:2007(E)
Annex H (normative) 8-to-16 Modulation . 119
Annex I (normative) Optimum Power Control . 127
Annex J (normative) Logical to Physical address translation. 132
Annex K (informative) Recommended access method for players . 133
Annex L (informative) Measurement of the groove wobble amplitude . 134
Annex M (informative) Transportation. 136
Annex N (informative) Defect Management and Physical Formatting . 137
Annex O (informative) Video Content Protection System . 138
Annex P (informative) How to use the Physical format information in ADIP . 139
Annex Q (informative) Values to be Implemented in Existing and Future Specifications . 141

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ISO/IEC 29642:2007(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 shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 29642 was prepared by Ecma International (as ECMA-374) 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 29642:2007(E)
Introduction
Ecma Technical Committee TC 31 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 June 2006 a group of Companies proposed to TC 31 to develop a standard for 120 mm dual layer
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 17341 and ISO/IEC 26925). TC 31 adopted this
project and started the work that has resulted in this International Standard.
This International Standard specifies two Types of rewritable optical disks, one (Type S9) making use of
recording on only a single side of the disk and yielding a nominal capacity of 8,55 Gbytes or 2,66 Gbytes per
disk and the other (Type D18) making use of recording on both sides of the disk and yielding a nominal
capacity of 17,1 Gbytes or 5,32 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 TC 15, provides the requirements for information interchange
between systems.

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INTERNATIONAL STANDARD ISO/IEC 29642:2007(E)

Information technology — Data interchange on 120 mm and 80
mm optical disk using +RW DL format — Capacity: 8,55 Gbytes
and 2,66 Gbytes per side (recording speed 2,4x)
1 Scope
This International Standard specifies the mechanical, physical and optical characteristics of 120 mm
rewritable optical disks with capacities
...