ISO/IEC 12862:2011
(Main)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)
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)
ISO/IEC 12862:2011 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). ISO/IEC 12862:2011 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. ISO/IEC 12862:2011 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.
Technologies de l'information — Disques DVD enregistrables de 120 mm (8,54 Go par face) et 80 mm (2,66 Go par face) pour double couche (DVD-R pour DL)
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 12862
Second edition
2011-05-01
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)
Technologies de l'information — Disques DVD enregistrables de
120 mm (8,54 Go par face) et 80 mm (2,66 Go par face) pour double
couche (DVD-R pour DL)
Reference number
©
ISO/IEC 2011
© ISO/IEC 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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Published in Switzerland
ii © ISO/IEC 2011 – All rights reserved
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
3 Normative references.2
4 Terms and definitions .2
5 Conventions and notations .6
5.1 Representation of numbers.6
5.2 Names.6
6 Abbreviated terms.6
7 General description of a disk .8
8 General requirement.9
8.1 Environments.9
8.1.1 Test environment.9
8.1.2 Operating environment.9
8.1.3 Storage environment.10
8.1.4 Transportation .10
8.2 Safety requirements.10
8.3 Flammability.10
9 Reference measurement devices.10
9.1 Pick-Up Head (PUH).10
9.1.1 PUH for measuring recorded disks .10
9.1.2 PUH for measuring unrecorded disks.12
9.2 Measurement conditions .13
9.2.1 Recorded and unrecorded disk .13
9.2.2 Recorded disk.13
9.2.3 Unrecorded disk.13
9.3 Normalized servo transfer function.14
9.4 Reference servo for axial tracking.14
9.4.1 Recorded disk.14
9.4.2 Unrecorded disk.15
9.5 Reference servo for radial tracking .16
9.5.1 Recorded disk.16
9.5.2 Unrecorded disk.17
10 Dimensional characteristics.18
10.1 Overall dimensions.20
10.2 First transition area .20
10.3 Second transition area.21
10.4 Clamping Zone.21
10.5 Third transition area.21
10.6 R-Information Zone .22
10.6.1 Sub-divisions of the R-Information Zone.22
10.7 Information Zone .22
10.7.1 Sub-divisions of the Information zone.22
© ISO/IEC 2011 – All rights reserved iii
10.8 Track geometry.23
10.8.1 Track Path.23
10.9 Channel bit length.24
10.10 Rim area.24
10.11 Remark on tolerances .25
10.12 Label.25
11 Mechanical parameters.25
11.1 Mass.25
11.2 Moment of inertia.25
11.3 Dynamic imbalance.25
11.4 Sense of rotation.25
11.5 Runout.25
11.5.1 Axial runout.25
11.5.2 Radial runout.26
12 Optical parameters.26
12.1 Recorded and unrecorded disk parameters .26
12.1.1 Index of refraction.26
12.1.2 Thickness of the transparent substrate .26
12.1.3 Angular deviation.27
12.1.4 Birefringence of the transparent substrate.27
12.2 Recorded disk reflectivity.27
12.3 Unrecorded disk parameters .28
12.3.1 Polarity of reflectivity modulation.28
12.3.2 Recording power sensitivity variation.28
13 Operational signals for recorded disk.28
13.1 Measurement conditions .28
13.2 Read conditions.28
13.3 Recorded disk high frequency (HF) signals .28
13.3.1 Modulated amplitude.28
13.3.2 Signal asymmetry.29
13.3.3 Cross-track signal.29
13.4 Quality of signals.29
13.4.1 Jitter.29
13.4.2 Random errors.29
13.4.3 Defects.30
13.5 Servo signals.30
13.5.1 Differential phase tracking error signal.30
13.5.2 Tangential push-pull signal .30
13.6 Groove wobble signal .32
14 Operational signals for the unrecorded disk .33
14.1 Measurement conditions .33
14.2 Recording conditions.33
14.3 Write strategy for media testing.33
14.3.1 Defin
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