ISO/IEC INTERNATIONAL STANDARD 10885 First edition 1993-11-01 Information technology 356 mm optical disk cartridge for information interchange --- Write once Technologies de Il'information Cartouches de disques optiques de 356 mm pour I'échange d'informations - Cartouches non reinscriptibles IEC ISo Reference number ISO/IEC10885:1993(E) Copyright Intemational Organization for Standardization Not for Resale IS0/IEC 10885:1993(E) Contents Page 1 Scope 1 2 Conformance 1 3 Normative reference 1 4 Definitions 1 4.1 General 2 4.1.1 caddy 2 4.1.2 case 2 4.1.3 optical disk 2 4.1.4 optical disk carrier 2 4.1.5 optica! disk cartridge 2 4.1.6 perimeter ring 2 4.2 Disk 2 4.2.1 air-sandwich disk 2 4.2.2 clamping zone 2 4.2.3 coversheet 2 4.2.4 disk reference plane 2 4.2.5 entrance surface 2 4.2.6 qny 2 4.2.7 protective layer 2 4.2.8 recording layer 2 4.2.9 spindle 2 4.2.10 tilt 2 4.3 Optics 2 4.3.1 actual write power 2 4.3.2 baseline reflectance 2 4.3.3 birefringence 2 4.3.4 cross-talk leve! 3 4.3.5 mark 3 4.3.6 narrow band signal-to-noise ratio 3 4.3.7 noise floor 3 4.3.8 optical retardation 3 4.3.9 read power 3 4.3.10 write power 3 ISO/IEC 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfim, without permission in writing from the publisher. ISO/IEC Copyright Office ·Case postale 56 . CH-1211 Geneve 20 . Switzerland Printed in Switzerland CopyrighematinalOrganizatinfor Standardization ermitted without license from IHS Not for Resale ISO/IEC 10885:1993(E) 4.4 Format 3 4.4.1 band 3 4.4.2 format 3 4.4.3 track 3 4.4.4 track pitch 3 4.5 Errors 3 4.5.1 cyclic redundancy check (CRC) 3 4.5.2 defect management 3 4.5.3 error correction code (ECC) 3 4.5.4 error detection and correction (EDAC) 3 4.5.5 interleaving 3 4.5.6 Reed-Solomon code 3 5 Abbreviations and acronyms 3 4 6 Conventions 7 General description 4 8 4 Environment 8.1 Testing environment 4 8.2 Operating environment 4 8.3 Storage environment 5 8.3.1 Short-term storage 5 8.3.2 Long-term storage 5 8.3.3 5 Transportation Safety requirements 5 9 9.1 Safety 5 9.2 Flammability 5 Dimensional and mechanical characteristics of the caddy 6 10 10.1 6 General 10.2 Caddy drawings 6 10.3 Relationship of sides and interface with carrier 6 10.3.1 Relationship of sides 6 10.3.2 Interface with carrier 6 10.3.3 Write protect features (see figure 4) 6 10.4 7 Materials 10.5 Mass 7 10.6 7 Caddy dimensions 10.6.1 Overall dimensions of the caddy 7 10.6.2 Opening force of the caddy door 7 10.6.3 Location of the caddy window 7 10.6.4 Caddy write protect tabs 7 ii yrhmatganizatSadardizati ed without licel ense from IHS Not for Resale