ISO/IEC INTERNATIONAL STANDARD 10149 Second edition 1995-07-15 Information technology - Data interchange on read-only120 mmoptical data disks (CD-ROM) Technologies de I'information -Echange de donnees sur des disques optiquesdediametre120mmalectureunique(CD-ROM) IEC ISO Referencenumber ISO/IEC10149:1995(E) ISO/IEC10149:1995(E) Contents Page 1 Scope 1 1 2 Conformance 3 1 Normative references 4 1 Definitions Audio Track 1 4.1 1 4.2 concentricity 4.3 1 Controlbyte 1 4.4 Digital Data Track 4.5 F,-Frame 1 2 4.6 F2-Frame 2 4.7 Fg-Frame 2 4.8 Information Area 2 4.9 Information Track 2 4.10 Physical Track 2 4.11 radial acceleration 2 4.12 radial runout 2 4.13 Section 2 4.14 Sector 2 4.15 User Data Area 2 5 Environments 2 5.1 Testing environments 2 5.1.1 Optical stylus 2 Clamping 5.1.2 2 5.1.3 Normal testing environment 3 5.1.4 Restrictedtestingenvironment 3 5.2 Operating environment 3 5.3 Storage environment 3 6 Inflammability C ISO/IEC1995 All rights reserved.Unless otherwise specified, no part of this publication may be photocopying and microfilm, without permission in writing from the publisher. ISO/IECCopyrightOffice·Casepostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii ISO/IEC ISO/IEC10149:1995(E) 7 Material 3 8 Mechanical,physical anddimensional characteristics 3 8.1 4 Referenceplanes 8.2 Centre hole 4 8.3 4 First transition area 8.4 Clamping area 5 8.5 Second transition area 5 8.6 Information Area 5 8.7 Rim area 6 8.8 General remarks 7 7 9 Mechanical deflection of theentrance surface 10 7 Deflectionofthereflectivelayer 11 7 Physical Track geometry Physical Track shape 11.1 7 11.2 Direction of rotation 8 11.3 Physical Track pitch 8 11.4 Scanning velocity 8 11.5 Radial runout of tracks 8 12 Optical read system 8 12.1 HF signal 8 12.2 8 Modulation amplitude 12.3 9 Symmetry 12.4 Cross talk 9 12.5 Qualityof theHF signal 9 12.5.1 Position jitterof theChannelbits 9 12.5.2 Specificationofrandomerrors 9 12.5.3 9 Specification of burst errors 12.6 Radial track-following signal 9 12.6.1 Magnitude 9 12.6.2 Defects 10 13 15 General aspects of recording 13.1 15 Information Tracks Bit coding 13.2 15 14 Sectorsof aDigital Data Track 15 16 14.1 Sync field 16 14.2 Header field 17 14.3 EDCfield 17 14.4 Intermediate field 14.5 P-Parity field 17 14.6 17 Q-Parity field Scrambling 17 15 ii