ECMA-349.pdf

ECMA-349 4th Edition June 2008 Data Interchange on 120 mm and 80 mm Optical Disk using +R Format Capacity: 4,7 and 1,46 Gbytes per Side (Recording speed up to 16X) Ecma International Rue du Rhne 114 CH-1204 Geneva T/F: +41 22 849 6000/01 www.ecma-international.org Data Interchange on 120 mm and 80 mm Optical Disk using +R Format Capacity: 4,7 and 1,46 Gbytes per Side (Recording speed up to 16X) Standard ECMA-349 4th Edition - June 2008 . Introduction Ecma Technical Committee TC31 was established in 1984 for the standardization of Optical Disks and Optical Disk Cartridges (ODC). Since its establishment, the Committee has made major contributions to ISO/IEC toward the development of International Standards for 80 mm, 90 mm, 120 mm, 300 mm, and 356 mm media. Numerous standards have been developed by TC31 and published by Ecma, almost all of which have also been adopted by ISO/IEC under the fast-track procedure as International Standards. In April 2003 a group of Companies proposed to TC31 to develop a standard for 120 mm recordable optical disks using the WORM recording technology and based on the DVD Read-Only standard (ECMA-267) and the +RW format (ECMA-337). TC31 adopted this project and started the work that has resulted in the first edition of ECMA-349. This Ecma Standard specifies two Types of recordable optical disks, one (Type S) making use of recording on only a single side of the disk and yielding a nominal capacity of 4,7 or 1,46 Gbytes per disk and the other (Type D) making use of recording on both sides of the disk and yielding a nominal capacity of 9,4 or 2,92 Gbytes per disk. In December 2003 a proposal was made to TC31 to update this Ecma Standard for recording speeds up to 8 times the Reference velocity. TC31 adopted this project which has resulted in the second edition of ECMA-349. In February 2005 a proposal was made to TC31 to update this Ecma Standard for recording speeds up to 16 times the Reference velocity and to facilitate the application of the Video Content Protection System. This Ecma Standard, taken together with a standard for volume and file structure, such as for instance developed in Ecma Technical Committee TC15, provides the requirements for information interchange between systems. This Ecma Standard has been adopted by the General Assembly of June 2008. - i - Table of contents Section 1 General 1 1 Scope 1 2 Conformance 1 2.1 Optical Disk 1 2.2 Generating system 1 2.3 Receiving system 1 2.4 Compatibility statement 1 3 References 2 4 Definitions 2 4.1 Channel bit 2 4.2 Clamping Zone 2 4.3 Digital Sum Value (DSV) 2 4.4 Disk Reference Plane 2 4.5 dummy substrate 2 4.6 entrance surface 2 4.7 field 2 4.8 groove 3 4.9 interleaving 3 4.10 mark 3 4.11 Multi-session disk 3 4.12 Physical Sector 3 4.13 recording layer 3 4.14 Reed-Solomon code (RS) 3 4.15 Reference velocity 3 4.16 Single-session disk 3 4.17 session 3 4.18 space 3 4.19 substrate 3 4.20 track 3 4.21 track pitch 3 4.22 VCPS 4 - ii - 4.23 wobble 4 4.24 zone 4 5 Conventions and notations 4 5.1 Representation of numbers 4 5.2 Names 4 6 Abbreviations and acronyms 4 7 General description of the optical disk 5 8 General Requirements 6 8.1 Environments 6 8.1.1 Test environment 6 8.1.2 Operating environment 6 8.1.3 Storage environment 7 8.1.4 Transportation 7 8.2 Safety requirements 7 8.3 Flammability 7 8.4 Light fastness 7 9 Reference Drive 7 9.1 Optical system 7 9.2 Optical beam 8 9.3 Read channel 1 9 9.4 Disk clamping 9 9.5 Rotation of the disk 9 9.6 Wobble channel (Read channel 2) 10 9.7 Tracking channel (Read channel 2) 10 9.8 Reference servo systems 10 9.8.1 Normalized servo transfer function 10 9.8.2 Reference Servo for Axial Tracking 10 9.8.3 Reference Servo for Radial Tracking 11 Section 2 Dimensional, mechanical and physical characteristics of the disk 13 10 Dimensional characteristics 13 10.1 Reference Planes 14 10.2 Overall dimensions 14 10.3 First transition area 14 10.4 Second transition area 15 10.5 Clamping Zone 15 - iii - 10.6 Third transition area 15 10.7 Information Zone 15 10.8 Rim Area 15 10.9 Remark on tolerances 16 11 Mechanical characteristics 16 11.1 Mass 16 11.2 Moment of inertia 16 11.3 Dynamic imbalance 16 11.4 Axial runout 16 11.4.1 Tracking requirements at the Reference velocity (CLV) 16 11.4.2 Tracking requirements at 3 000 RPM (CAV) 16 11.5 Radial runout 17 11.5.1 Tracking requirements at the Reference velocity (CLV) 17 11.5.2 Tracking requirements at 3 000 RPM (CAV) 17 12 Optical characteristics in the Information Zone 17 12.1 Index of refraction 17 12.2 Thickness of the substrate 17 12.3 Reflectivity 18 12.4 Birefringence 18 12.5 Angular deviation 19 Section 3 Format of information 20 13 Data format 20 13.1 Data Frames 20 13.1.1 Identification Data (ID) 21 13.1.2 ID Error Detection Code (IED) 21 13.1.3 RSV 21 13.1.4 Error Detection Code (EDC) 22 13.2 Scrambled Frames 22 13.3 ECC Blocks 23 13.4 Recording Frames 24 13.5 Modulation and NRZI conversion 24 13.6 Physical Sectors 25 13.7 Layout of a Rec