ISO/IEC INTERNATIONAL STANDARD 26925 Second edition 2009-06-15 Information technology Data interchange on 120 mm and 80 mm optical disk using +Rw HS format Capacity: 4,7 Gbytes and 1,46 Gbytes per side (recording speed 8X) Technologies de I'information - Echange de données sur disques optiques de 120 mm et 80 mm en utilisant le format +RW HS Capacite: 4,7 Go et 1,46 Go par face (vitesse d'enregistrement de 8X) Reference number ISO/IEC 26925:2009(E) IEC @ISO/IEC2009 IHS under I without license from IHS Not for Resale ISO/IEC 26925:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In 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 COPYRIGHTPROTECTEDDOCUMENT @ ISO/IEC2009 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 @ ISO/IEC 2009 -All rights reserved ed without license from IHS Not for Resale ISO/IEC 26925:2009(E) Contents Page Foreword. vii Introduction . vili 1 Scope 2 Conformance.. 2.1 Optical disk... 2.2 Generating system. 2.3 Receiving system... 2.4 Compatibility statement... 3 Normative references . .2 4 Terms and definitions . 5 Conventionsandnotations 5.1 Representation of numbers ... 5.2 Names .......... 6 Abbreviated terms 7 8 GeneralRequirements 8.1 Environments..... 8.1.1 Test environment. 8.1.2 Operating environment, 8.1.3 Storage environment. 8.1.4 Transportation.... 8.2 Safety requirements 8.3 Flammability.. 9 Reference Drive. 9.1 Optical system .... 9.2 Opticalbeam 9.3 Read channel 1. 9.4 Disk clamping.... 9.5 Rotation of the disk.. 10 9.6 Wobble channel (Read channel 2) 10 9.7 Tracking channel (Read channel 2) 9.8 9.8.1 Normalized servo transfer function . 11 9.8.2 Reference Servo for Axial Tracking ... 1 9.8.3 Reference Servo for Radial Tracking..... 2 10 Dimensional characteristics .14 10.1 Reference Planes.... 10.2 Overall dimensions... .15 10.3 First transition area 15 10.4 Second transition area. 16 10.5 Clamping Zone ... ..16 10.6 Third transition area ... 16 10.7 Information Zone..... .16 10.8 Rim area..... 10.9 Remark on tolerances .17 11 Mechanical characteristics .17 CopyrightInternational Ooganizainfrstandardizalion All rights reserved ili ted withoutlicensefromIHS Not for Resale ISO/IEC 26925:2009(E) 11.1 11.2 Moment of inertia . 17 11.3 Dynamic imbalance.. 17 11.4 17 11.4.1 Tracking requirements at the Reference velocity (CLV) 11.4.2 Tracking requirements at 3 ooo RPM (CAV)... 18 11.5 18 11.5.1 Tracking requirements at the Reference velocity (CLV). 11.5.2 Tracking requirements at 3 000 RPM (CAV).... 18 12 Optical characteristics in the Information Zone 19 12.1 Index of refraction... 19 12.2 Thicknessofthesubstrate... 19 12.3 12.4 Birefringence 19 12.5 Angular deviation .... 19 13 Data format . .20 13.1 20 13.1.1 Identification Data (ID)..... 21 13.1.2 ID Error Detection Code (IED) 22 13.1.3 RSV 22 13.1.4 22 13.2 Scrambled Frames.... 23 13.3 Ecc Blocks... 23 13.4 25 13.5 ModulationandNRZl conversion...... 25 13.6 Physical Sectors .... 26 13.7 Layout of a Recording UNit (RUN). 13.7.1 Recording Unit position ...... 28 13.8 d.c. component suppr