1、 ECMA-365 1stEdition / June 2005 Data Interchange on 60 mm Read-Only ODC - Capacity: 1,8 Gbytes (UMDTM) Data Interchange on 60 mm Read-Only ODC - Capacity: 1,8 Gbytes (UMDTM) Standard ECMA-365 1stEdition / June 2005 Ecma International Rue du Rhne 114 CH-1204 Geneva T/F: +41 22 849 6000/01 www.ecma-i
2、nternational.org . Brief history 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 SC23 toward the development of International Standards for
3、 80mm, 90 mm, 120 mm, 130 mm, 300 mm, and 356 mm media. Numerous standards have been developed by TC31 and published by Ecma International, almost all of which have also been adopted by ISO/IEC under the fast-track procedure as International Standards. The need for further miniaturization had been r
4、ecognized for use in portable electronic devices as a result of consumer acceptance of products based on previous Ecma CD-ROM and DVD-Read-Only Disk standards, ECMA-130, ECMA-267, ECMA-268 respectively. In October 2004 a group of companies proposed to TC31 to develop an Ecma Standard for the first 6
5、0 mm optical ROM disk. TC31 adopted this project and started the standardization work. This disk is identified as Universal Media Disc (UMD). (UMD is the trade mark of Sony Computer Entertainment Inc.) This Ecma Standard has been adopted by the General Assembly of June 2005. Table of contentsSection
6、 1 - General 1 1 Scope 1 2 Conformance 1 2.1 Optical disk cartridge 2.2 Generating system 1 2.3 Receiving system 1 3 References 1 4 Definitions 1 4.1 Channel bit 1 4.2 Clamping Zone 1 4.3 Digital Sum Value 1 4.4 Disk Reference Plane 2 4.5 Dual Layer disk 2 4.6 Dummy layer 2 4.7 Entrance surface 2 4.
7、8 Optical disk 2 4.9 Physical sector number 4.10 Pit 2 4.11 Read-only disk 2 4.12 Recorded layer 2 4.13 Reed-Solomon code 4.14 Sector 2 4.15 Single Layer disk 2 4.16 Spacer 2 4.17 Substrate 2 4.18 Substrate 0 2 4.19 Substrate 1 3 4.20 Track 3 4.21 Track pitch 3 4.22 Zone 3 - i - 5 Conventions and no
8、tations 3 5.1 Representation of numbers 5.2 Names 3 6 List of acronyms 3 7 General description of the ODC 4 8 Environments and Safety 6 8.1 Environments 6 8.1.1 Test environment 6 8.1.2 Operating environment 8.1.3 Storage environment 8.1.4 Transportation 6 8.2 Safety requirements 8.3 Flammability 7
9、9 Reference measurement devices 9.1 Pick Up Head 7 9.2 Measurement conditions 8 9.3 Normalized servo transfer function 9.4 Reference Servo for axial tracking 9 9.5 Reference Servo for radial tracking 10 Section 2 - Dimensional, mechanical and physical characteristics 11 10 Dimensional and physical c
10、haracteristics of the case 11 10.1 General description of the case 11 10.2 Reference Planes of the case 10.3 Dimensions of the case 11 10.3.1 Overall dimensions 10.3.2 Location hole 12 10.3.3 Alignment hole 12 10.3.4 Reference surfaces 13 10.3.5 Spindle window 13 10.3.6 Head window 13 10.3.7 Detent
11、for mis-insert protection 14 10.3.8 Detent for safe ejection 15 10.3.9 Detent for auto loading 16 10.3.10 Space for shutter opener 18 10.4 Mechanical characteristics 19 10.4.1 Material 19 10.4.2 Compliance 19 - ii - 11 Dimensional characteristics of the disk 27 11.1 Overall dimensions 27 11.2 First
12、transition area 28 11.3 Second transition area 11.4 Clamping Zone 28 11.5 Clamping plate 28 11.6 Third transition area 28 11.7 Fourth transition area 29 11.8 Fifth transition area 11.9 Information Zone 29 11.9.1 Sub-divisions of the Information Zone 29 11.9.2 Track and pits geometry 30 11.9.3 Track
13、modes 30 11.9.4 Channel bit length 31 11.10 Rim area 31 11.11 Deflection 31 11.12 Runout 31 11.12.1 Axial runout 31 11.12.2 Radial runout 31 11.13 Label 31 12 Mechanical parameters of the disk 31 12.1 Mass 31 12.2 Moment of inertia 32 12.3 Dynamic imbalance 32 12.4 Sense of rotation 32 13 Optical pa
14、rameters of the disk 32 13.1 Index of refraction 32 13.2 Thickness of the substrate 0 32 13.3 Thickness of the spacer 13.4 Angular deviation 32 13.5 Birefringence of the transparent substrate 32 13.6 Reflectivity 32 14 Interface between cartridge and drive 36 14.1 Clamping method 36 14.2 Clamping fo
15、rce 36 14.3 Capture cylinder 36 14.4 Disk position in operating condition 36 - iii - Section 3 - Operational Signals 38 15 High frequency signals 15.1 Modulated amplitude 38 15.2 Signal asymmetry 38 15.3 Cross-track signal 39 15.4 Quality of signals 39 15.4.1 Jitter 39 15.4.2 Random errors 39 15.4.3
16、 Defects 39 16 Servo signals 40 16.1 Push-pull signal 40 Section 4 - Data Format 42 17 Data Format General 42 18 Data Frames 42 18.1 Identification Data 42 18.2 ID Error Detection Code 43 18.3 Copyright Management Information 44 18.4 Error Detection Code 44 19 Scrambled Frames 44 20 ECC Blocks 45 21
17、 Recording Frames 47 22 Modulation 47 23 Physical Sectors 48 24 Suppress control of the d.c. component 49 Section 5 - Format of the Information Zones 51 25 General description of an Information Zone 51 26 Layout of the Information Zone 51 26.1 Physical Sector numbering 26.2 Lead-in Zone 52 - iv - 26
18、.2.1 Initial Zone 53 26.2.2 MI Zone 53 26.2.3 Buffer Zone 53 26.2.4 Control Data Zone 53 26.3 Middle Zone 56 26.4 Lead-out Zone 56 26.5 MI Backup Zone 56 Annex A (normative) Compliance test 57 Annex B (normative) Measurement of the angular deviation 59 Annex C (normative) Measurement of birefringenc
19、e 61 Annex D (normative) Measurement of light reflectance 63 Annex E (normative) Tapered cone for disk clamping 65 Annex F (normative) Measurement of jitter 67 Annex G (normative) 8-to-16 Modulation with RLL (2,10) requirements 69 Annex H (informative) Transportation 79 Annex I (informative) Measure
20、ment of the thickness of the spacer of Dual Layer disks 81- v - - vi - Section 1 - General 1 Scope This Ecma Standard specifies the mechanical, physical and optical characteristics of a 60 mm, read-only ODC having a maximum capacity of 1,8 Gbytes. It specifies the physical format, the quality of the
21、 recorded signals, the format of the data and its modulation method, thereby allowing for information interchange by means of such ODCs. This Ecma standard specifies two types of ODCs, Type A and Type B. Type A: Single layer disk with maximum recorded capacity of 0,9 G-bytes. Type B: Dual layer disk
22、 with maximum recorded capacity of 1,8 G-bytes. Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange code(s) and the specifications of the structure and labeling of the information on the interchanged ODCs. UMD is the tra
23、de mark of Sony Computer Entertainment Inc. 2 Conformance 2.1 Optical disk cartridge A claim of conformance shall specify the Type of the ODC. An ODC shall be in conformance with this Ecma Standard if it meets the mandatory requirements specified for its Type. 2.2 Generating system A generating syst
24、em shall be in conformance with this Ecma Standard if the ODC it generates is in accordance with 2.1. 2.3 Receiving system A receiving system shall be in conformance with this Ecma Standard if it is able to handle both Types of ODC according to 2.1. 3 References ECMA-287 Safety of electronic equipme
25、nt ISO 16143-1 Stainless Steel for General purpose 4 Definitions For the purpose of this Ecma Standard the following definitions apply. 4.1 Channel bit The elements by which, after modulation, the binary values ZERO and ONE are represented on the disk by pits. 4.2 Clamping Zone The annular part of t
26、he substrate within which a clamping force is applied by a clamping device. 4.3 Digital Sum Value The arithmetic sum obtained from a bit stream by allocating the decimal value 1 to bits set to ONE and the decimal value -1 to bits set to ZERO. - 1 - 4.4 Disk Reference Plane A plane defined by the per
27、fectly flat annular surface of an ideal spindle onto which the Clamping Zone of the disk is clamped, and which is normal to the axis of rotation. 4.5 Dual Layer disk An optical disk with a single entrance surface that gives access to a pair of recorded layers L0 and L1 which are located on substrate
28、s 0 and 1 respectively. 4.6 Dummy layer A recorded layer located on substrate 1 whose main data is all (00), i.e. dummy data. 4.7 Entrance surface The surface of substrate 0 onto which the optical beam first impinges. 4.8 Optical disk A disk that accepts and retains information in the form of pits i
29、n a recorded layer that can be read by an optical beam. 4.9 Physical sector number A serial number allocated to physical sectors on the disk. 4.10 Pit An embossed feature of the recorded layer which influences the optical phase of the incident light. 4.11 Read-only disk An optical disk in which the
30、information has been recorded during manufacturing and may not be altered by subsequent recording systems. 4.12 Recorded layer A layer of the disk on, or in, which data is recorded. 4.13 Reed-Solomon code An error detection and/or correction code. 4.14 Sector The smallest part of a track in the Info
31、rmation Zone that can be accessed independently of other addressable parts 4.15 Single Layer disk An optical disk having a single user data layer recorded on substrate 0, with substrate 1 containing only dummy data. 4.16 Spacer A transparent layer placed between two recorded layers or between a reco
32、rded layer and a dummy layer. 4.17 Substrate A layer of the disk which provides mechanical support of the recorded layer(s). 4.18 Substrate 0 Substrate located on the optical entrance side through which the optical beam accesses the recorded layer(s). - 2 - 4.19 Substrate 1 Substrate located on the
33、opposite side from the optical beam and is bonded to substrate 0, having no optical parameter requirement. 4.20 Track A 360 turn of a continuous spiral. 4.21 Track pitch The distance between the centrelines of a pair of adjacent physical tracks, measured in radial direction. 4.22 Zone An annular are
34、a of the disk. 5 Conventions and notations 5.1 Representation of numbers A measured value is rounded off to the least significant digit of the corresponding specified value. For instance, it implies that a specified value of 1,26 with a positive tolerance of + 0,01 and a negative tolerance of - 0,02
35、 allows a range of measured values from 1,235 to 1,275. Numbers in decimal notations are represented by the digits 0 to 9. Numbers in hexadecimal notation are represented by the hexadecimal digits 0 to 9 and A to F in parentheses. The setting of bits is denoted by ZERO and ONE. Numbers in binary not
36、ations and bit patterns are represented by strings of digits 0 and 1, with the most significant bit shown to the left. Negative values of numbers in binary notation are given as Twos complement. In each field the data is recorded so that the most significant byte (MSB), identified as Byte 0, is reco
37、rded first and the least significant byte (LSB) last. In a field of 8n bits, bit b(8n-1) shall be the most significant bit (msb) and bit b0 the least significant bit (lsb). Bit b(8n-1) is recorded first. 5.2 Names The names of entities, e.g. specific tracks, fields, zones, etc. are given a capital i
38、nitial. 6 List of acronyms a.c. alternate current BP Byte Position BPF Band Pass Filter CLV Constant Linear Velocity CPR_MAI Copyright Management Information d.c. direct current DL Dual Layer DSV Digital Sum Value - 3 - ECC Error Correction Code EDC Error Detection Code EQ Equalizer FWHM Full Width
39、at Half Maximum HF High Frequency ID Identification Data IED ID Error Detection code IR Index of Refraction LPF Low-Pass Filter LSB Least Significant Byte lsb least significant bit MI Media Information MSB Most Significant Byte msb most significant bit NRZ Non Return to Zero NRZI Non Return to Zero
40、Inverted OTP Opposite Track Path PBS Polarizing Beam Splitter PE Phase Encoded PI Parity of the Inner PLL Phase-Locked Loop PO Parity of the Outer PP Push-Pull PTP Parallel Track Path PUH Pick Up Head RIN Relative Intensity Noise RLL Run Length Limited RS Reed-Solomon RZ Return to Zero SL Single Lay
41、er SYNC Synchronisation 7 General description of the ODC The optical disk cartridge which is the subject of this Ecma Standard consists of a case containing an optical disk. The case is a protective enclosure for the disk. It has access windows and it may be covered by a shutter. The optical disk th
42、at is the subject of this Ecma Standard consists of two substrates bonded together by a spacer, so that the recorded layers are on the inside. The centring of the disk is performed on the edge of the centre hole of substrate 0. Clamping is performed in the Clamping Zone by the - 4 - mageto-static fo
43、rce on the clamping plate provided by the clamping mechanism of the drive. This Ecma Standard specifies the following Types (see Figure 1): Type A: Single layer disk with maximum recorded capacity of 0,9 G-bytes recorded on substrate 0. Substrate 1 contains dummy data. Type B: Dual layer disk with m
44、aximum recorded capacity of 1,8 G-bytes. All data is accessed through substrate 0. Figure 1 - Types of 60 mm Read-Only disks Direction of rotationDirection of rotationSubstrate 1Substrate 1Substrate 0Substrate 0DummyRecordedRecordedRecordedReadout sideReadout sideSpacerSpacerType AType Blayerlayer L
45、1layer L0layer L0- 5 - 8 Environments and Safety 8.1 Environments 8.1.1 Test environment The test environment is the environment where the air immediately surrounding the disk has the following properties. a) For dimensional measurements b) For the other measurements temperature : 23 C 2 C 15 C to 3
46、5 C relative humidity : 45 % to 55 % 45 % to 75 % atmospheric pressure : 86 kPa to 106 kPa 86 kPa to 106 kPa No condensation on or in the case or cartridge shall occur. Before testing, the case or cartridge shall be conditioned in this environment for 48 hours minimum. Unless otherwise stated, all t
47、ests and measurements shall be made in this test environment. 8.1.2 Operating environment This Ecma Standard requires that an optical disk which meets all mandatory requirements in the specified test environment provides data interchange over the specified ranges of environmental parameters in the o
48、perating environment. Disks used for data interchange shall be operated under the following conditions, when mounted in the drive supplied with voltage and measured on the outside surface of the disk. The disk exposed to storage conditions shall be conditioned in the operating environment for at lea
49、st two hours before operating. temperature : - 25 C to 70 C relative humidity : 3 % to 95 % absolute humidity : 0,5 g/m3to 60 g/m3sudden change of temperature : 50 C max. sudden change of relative humidity : 30 % max. There shall be no condensation of moisture on the disk. 8.1.3 Storage environment The storage environment is the environment where the air immediately surrounding the optical disk shall have the following properties. temperature : - 20 C to 50 C relative humidity : 5 % to 90 % absolute humidity : 1 g/m3to 30 g/m3atmospheric
