I50/IEC INTERNATIONAL STANDARD 23912 First edition 2005-11-01 Information technology - 80 mm (1,46 Gbytes per side) and 120 mm (4,70 Gbytes per side) DVD Recordable Disk (DVD-R) Technologies de I'information -Disque enregistrable DVD (DVD-R) de 80 mm (1,46 GB par face) et 120 mm (4,7 GB par face) de diametre Reference number ISO/IEC 23912:2005(E) IEC ISO @ISO/IEC 2005 I50/IEC23912:2005(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO/IEC2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISo at the address below or IsO'smemberbody inthecountryof therequester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel.+ 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org ii @ISO/IEC 2005 - Allrights reserved ISO/IEC23912:2005(E) Contents Page Section 1- General... 1 Scope. 2 Conformance 2.1 OpticalDisk. 2.2 Generatingsystem 2.3 Receiving system. 3 Normative references... 4 Terms and definitions .. 5 Conventions and notations.. 5.1 Representation of numbers. 5.2 Names........ 6 Acronyms.... 7 General description of a disk . 8 General requirement .. 8.1 Environments.... 8.1.1 Test environment... 8.1.2 Operating environment. 8.1.3 Storage environment... 8.1.4 Transportation .... 8.2 Safetyrequirements 8.3 Flammability... 9 Reference measurement devices ... 9.1 Pick-UpHead (PUH) 9.1.1 PUH formeasuring recorded disks.... 9.1.2 PUH for measuring unrecorded disks. 11 9.2 Measurement conditions.. 12 9.2.1 Recorded and unrecorded disk... 12 9.2.2 Recorded disk..... 12 9.2.3 Unrecorded disk .. 9.3 Normalized servo transfer function.. 12 9.4 Reference servo for axial tracking... 13 9.5 Reference servo for radial tracking.. 14 Section 2- Dimensional, mechanical and physical characteristics of the disk.. .16 10 Dimensional characteristics.. 10.1 Overall dimensions ... 17 10.2 18 10.3 Second transition area... 10.4 Clamping Zone... 18 10.5 Third transition area.. 18 10.6 RInformation Zone ... 19 10.6.1 Sub-divisions of the R-Information Zone.. 19 10.7 Information Zone .. 19 10.7.1 Sub-divisionsoftheInformationzone.. 19 10.8 Track geometry.. 20 10.9 Channel bit length 20 10.10 Rim area..... 21 10.11 Remark on tolerances. 21 10.12 Label..... 21 @ISO/IEC2005-Allrightsreserved ili ISO/IEC23912:2005(E) 11 Mechanicalparameters 11.1 Mass..... 22 11.2 Moment of inertia.. 22 11.3 Dynamicimbalance .22 11.4 Sense of rotation... 11.5 Runout. 22 11.5.1 Axial runout. 22 11.5.2 Radial runout.. .22 12 Optical parameters .. 12.1 Recorded and unrecorded disk parameters .. 23 12.1.1 Index of refraction.... .23 12.1.2 Thickness of the transparent substrate.. .23 12.1.3 12.1.4 Birefringence of the transparent substrate... 24 12.2 Recorded disk reflectivity.... 24 12.3 Unrecorded disk parameters ..24 12.3.1 Polarity of reflectivity modulation... 12.3.2 Recording power sensitivity variation... .24 Section 3- Operational signals.. 25 13 Operational signals for recorded disk... .25 13.1 Measurementconditions.... .25 13.2 13.3 Recorded disk high frequency (HF) signals.. 25 13.3.1 Modulated amplitude.... 13.3.2 Signal asymmetry... ..26 13.3.3 Cross-track signal.... 13.4 Quality of signals.. .26 13.4.1 Jitter.... .26 13.4.2 Randomerrors 13.4.3 Defects... 13.5 Servo signals.. 27