ISO/IEC INTERNATIONAL 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 I'information-Disques DVD enregistrables de 120mm(8,54Goparface)et80mm(2,66Goparface)pourdouble couche (DVD-R pour DL) Reference number ISO/IEC 12862:2011(E) IEO ISO ISO/IEC2011 ISO/IEC 12862:2011(E) COPYRIGHTPROTECTEDDOCUMENT ISO/IEC2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, Iso's member body in the country of the requester. 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 Published in Switzerland ii ISO/IEC2011- All rights reserved ISO/IEC12862:2011(E) Contents Page Foreword ..vii Introduction .vili 1 Scope.. 2 Conformance 2.1 OpticalDisk.. 2.2 Generating system.. 2.3 Receiving system ... 3 Normative references.... 4 Terms and definitions. 5 .6 5.1 Representationofnumbers. 5.2 Names... 6 Abbreviated terms... 7 Generaldescription of adisk 8 General requirement 8.1 9 8.1.1 Test environment..... .9 8.1.2 Operating environment. .9 8.1.3 Storage environment. 8.1.4 Transportation.... 10 8.2 Safety requirements 10 8.3 Flammability. 10 9 Referencemeasurementdevices. 10 9.1 Pick-Up Head (PUH) . 10 9.1.1 9.1.2 PUHformeasuringunrecorded disks 12 9.2 Measurementconditions.. 9.2.1 Recordedandunrecordeddisk 13 9.2.2 13 9.2.3 Unrecorded disk. 13 9.3 Normalized servotransferfunction... 9.4 14 9.4.1 Recorded disk.. 14 9.4.2 Unrecordeddisk 15 9.5 Reference servofor radial tracking 16 9.5.1 Recorded disk..... 9.5.2 Unrecorded disk 17 10 Dimensionalcharacteristics. ..18 10.1 Overall dimensions .... 20 10.2 First transition area .... 20 10.3 Second transitionarea. 21 10.4 Clamping Zone... 10.5 Third transition area.. 21 10.6 R-Information Zone ... 10.6.1 Sub-divisionsoftheR-lnformationZone 22 10.7 InformationZone 22 10.7.1 Sub-divisions of the Informationzone... 22 @ISO/IEC 2011- All rights reserved ili