1、Data Interchange on 90 mm Optical Disk Cartridges - Capacity: 385 Megabytes per Cartridge Phone: t41 22 849.60.00 - Fax: t41 22 849.60.01 - ECMANEWS: t41 22 735.33.29 - Internet: HelpdeskQECMA.CH ECMA ECHA-223 95 3404593 O022644 90T ECMA Standard ECMA-223 June 1995 Standardizing Information and Comm
2、unication Systems Data Interchange on 90 rnrn Optical Disk Cartridges - Capacity: 385 Megabytes per Cartridge Phone: +41 22 849.60.00 - Fax: t41 22 849.60.01 - ECMANEWS: t41 22 735.33.29 - Internei: HelpdeskQECMA.CH M- ECMA-223.DOC - 06.09.95 11 ,O9 ECMA ECMA-223 95 m 3404593 0022645 84b m Brief His
3、tory Technical committee ECMA TC31 for Optical Disk Cartridges (ODC) was set up in 1984. The committee made major contributions to ISO/IEC JTCl/SC23 for the development of standards for 90 rnm, 120 mm, 130 mm, 300 mm and 356 mm ODCs. ECMA produced camera-ready copies for most International ODC Stand
4、ards. In addition, ECMA published the following ODC Standards: ECMA-130 (1988) ECMA-153 (1991) Data Interchange on Read-only 120 mm Optical Data Disks (CD-ROM) Information Interchange on 130 mm Optical Disk Cartridges of the Write Once, Read Multiple (WORM) type, using the Magneto-Optical effect. Da
5、ta Interchange on 90 mm Optical Disk Cartridges, Read-only and Rewntable M.O. Data Interchange on 130 mm Optical Disk Cartridges - Capacity: 1 Gbyte Data Interchange on 130 mm Optical Disk Cartridges - Capacity: 1,3 Gbytes Information Interchange on 300 mm ODCs of the WORM type using the SSF Method.
6、 Information Interchange on 300 mm ODCs of the WORM type using the CCS Method. Data Interchange on 130 mm Optical Disk Cartridges - Capacity: 2 Gbytes Data Interchange on 90 mm Optical Disk Cartridges - Capacity: 230 Mbytes ECMA-154 (1991) ECMA-183 (1992) ECMA- 1 84 ( 1992) ECMA-189 (1993) ECMA- 190
7、 ( 1993) ECMA- 195 ( 1993) ECMA-201 (1994) Most of these ECMA Standards have been adopted under the fast-track procedure of ISO/IEC. ECMA Standard ISOAEC Standard ECMA-130 ISO/IEC 10149 ECMA- 15 3 ISO/IEC 11560 ECMA- 154 ISO/IEC 10090 ECMA- 183 ISO/IEC 13481 ECMA- 184 ISO/IEC 13549 ECMA-189 ISOAEC 1
8、3403 ECMA-190 ISO/IEC 13614 ECMA-195 ISO/IEC 13842 ECMA-201 ISO/IEC 13963 The present ECMA Standard is a standard in the 90 mm ODC senes. It specifies the GCR recording code and unlike any previous ODC standard, it allows both user data areas and headers to be written by drives in the field. It prov
9、ides a capacity of 385 MB per cartridge. Accepted as an ECMA Standard by the General Assembly of June 1995. ECMA ECMA-223 95 3404593 0022b4b 782 = Table of contents Section 1 - General 1 Scope 2 Conformance 2.1 Optical disk cartridge (ODC) 2.2 Generating system 2.3 Receiving System 2.4 Compatibility
10、 Statement 3 References 4 Definitions 4.1 band 4.2 case 4.3 Channel bit 4.4 clamping zone 4.5 control track 4.6 Cyclic Redundancy Check (CRC) 4.7 defect management 4.8 disk reference plane 4.9 embossed mark 4.10 entrance surface 4.1 1 Error Correction Code (ECC) 4.12 field2 4.13 format 4.14 fully re
11、writable disk 4.15 groove 4.16 hub 4.17 interleaving 4.18 Kerr rotation 4.19 land and groove 4.20 logical track 4.21 mark 4.21.1 mark edge recording 4.22 optical disk 4.23 optical disk cartridge (ODC) 4.24 physical track 4.25 physical track group 4.26 pitch 4.27 polarization 4.28 read power 4.29 rec
12、ording layer 4.30 Reed-Solomon code 4.31 rewritable optical disk 4.32 sector 4.33 spindle 4.34 substrate 4.35 ZCAV format 4.36 zone 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 Conventions and notations 4 ECMA ECMA-223 95 m 3404593 0022647 bL9 m - ii - 5.1 Repres
13、entation of numbers 5.2 Names 6 List of acronyms 7 General description of the optical disk cartridge 8 General requirements 8.1 Environments 8.1.1 Testing environment 8.1.2 Operating environment 8.1.3 Storage environment 8.1.4 Transportation 8.2 Temperature shock 8.3 Safety requirements 8.4 Flammabi
14、lity 9 Reference Drive 9.1 Optical system 9.2 Optical beam 9.3 Read channels 9.4 Tracking 9.5 Rotation of the disk Section 2 - Mechanical and physical characteristics 10 Dimensional and physical characteristics of the case 10.1 General description of the case 10.2 Reference planes of the case 10.3 D
15、imensions of the case 10.3.1 Overall dimensions 10.3.2 Location hole 10.3.3 Alignment hole 10.3.4 Reference surfaces 10.3.5 Detents 10.3.6 Functional Areas 10.3.7 Spindle and head windows 10.3.8 Shutter 10.3.9 Path for shutter opener and shutter sensor notch 10.3.10 Mis-insert protections 10.3.1 1 G
16、ripper slots 10.3.12 Label area 10.4 Mechanical characteristics 10.4.1 Material 10.4.2 Mass 10.4.3 Edge distortion 10.4.4 Compliance 10.4.5 Shutter opening force 11 Dimensional, mechanical and physical characteristics of the disk 11.1 General description of the disk 11.2 Reference axis and plane of
17、the disk 11.3 Dimensions of the disk 4 4 5 5 5 5 5 6 6 6 6 6 6 6 7 8 8 8 9 10 10 10 10 10 10 11 11 11 12 12 13 14 14 15 15 16 16 16 16 16 16 16 28 28 28 28 ECMA ECMA-223 95 3404593 0022648 555 W 11.3.1 Hub dimensions 11.3.2 Clamping zone 11.4.1 Material 11.4.2Mass 1 1.4.3 Moment of inertia 11.4.4 Im
18、balance 11.4.5 Axial deflection 11.4.6 Axial acceleration 11.4.7 Radial runout 11.4.8 Radial acceleration 11.4.9 Tilt 11.5 Optical characteristics 11.5.1 Index of refraction 11 S.2 Thickness of the substrate 11 S.3 Birefringence 11 S.4 Reflectance 11.4 Mechanical characteristics 12 Interface between
19、 cartridge and drive 12.1 Clamping method 12.2 Clamping force 12.3 Capture cylinder 12.4 Disk position in operating condition Section 3 - Format of information 13 Geometry of physical tracks 13.1 Track shape 13.2 Direction of track spiral 13.3 Physical track pitch 14 Track format 14.1 Track number 1
20、4.2 Track layout 14.3 Clock frequencies and periods 14.4 Sector number 15 Sector format 15.1 Sector layout (data zone) 15.2 Sector Mark 15.3 VFO fields 15.4 Address Mark (AM) 15.5 ID fields 15.6 Postambles (PA) 15.7 Gap1 15.8 Gap2 15.9 Sync 15.10 Data field 15.10.1 User data bytes 15.10.2 CRC and EC
21、C bytes 15.10.3 Resync bytes 15.10.4 Buffer field 28 29 29 29 30 30 30 30 31 31 31 31 32 32 32 32 32 32 32 32 32 33 35 35 35 35 35 35 35 35 36 36 39 39 40 41 41 41 41 41 41 42 42 42 42 42 42 ECMA ECMA-223 95 m 3404593 0022649 491 m - iv - 16 Recording code 17 Format of the Information Zone 17.1 Gene
22、ral description of the Information Zone 17.2 Division of the Information Zone 17.2.1 Initial Zone 17.2.2 Acquire Zone 17.2.3 Test Zones 17.2.4 Control Zones 17.2.5 Data Zone 17.2.6 Buffer Zone 18 Format of the Data Zone 18.1 Defect Management Areas (DMAs) 18.2 Disk Definition Structure DS) 18.3 Medi
23、a types 18.4 Partitioning 19 Defect management 19.1 Rewritable groups: Spare sectors 19.1.1 Initialization of the disk 19.1.2 Certification 19.1.3 Slipping Algorithm 19.1.4 Linear Replacement Algorithm 19.1.5 Disks not certified 19.1.6 Write procedure 19.1.7 Pnmary Defect List, (PDL) 19.1.8 Secondar
24、y Defect List (SDL) Section 4 - Characteristics of embossed information 20 Method of testing 20.1 Environment 20.2 Use of the Reference Drive 20.2.1 Optics and Mechanics 20.2.2 Read Power 20.2.3 Read Channels 20.2.4 Tracking 20.3 Definition of signals 21 Signais from grooves 21.1 Cross-track signal
25、21.2 Cross-track minimum signal 21.3 Push-pull signal 21.4 Divided push-pull signal 21.5 Phase depth 21.6 Track location 22 Signais from embossed Headers 22.1 Embossed Sector Mark 22.2 Embossed VFO, and VFO, Fields 22.3 Embossed Address Mark, ID and Postamble 42 43 43 43 43 43 43 43 44 44 44 44 46 4
26、7 47 47 47 47 47 47 47 48 48 48 49 51 51 51 51 51 51 51 51 51 54 54 54 54 55 55 55 55 55 55 56 ECMA ECMA-223 95 m 3404593 O022650 103 m -v- 23 Signals from embossed Recording fields Section 5 - Characteristics of the recording layer 24 Method of testing 24.1 Environment 24.2 Reference Drive 24.2.1 O
27、ptics and mechanics 24.2.2 Read power 24.2.3 Read Channel 24.2.4 Tracking 24.3 Write conditions 24.3.1 Write pulse 24.3.2 Write power and pulse width 24.3.3 Write magnetic field 24.4 Erase conditions 24.4. i Erase power 24.4.2 Erase magnetic field 24.5 Definition of signals 25 Magneto-opticai charac
28、teristics 25.1 Figure of merit 25.2 Imbalance of the magneto-optical signal 26 Write characteristics 26.1 Resolution 26.2 Narrow-band signal-to-noise ratio 26.3 Cross-talk 27 Erase characteristics Section 6 - Characteristics of user data 28 Method of testing 28. i Environment 28.2 Reference Drive 28
29、.2.1 Optics and mechanics 28.2.2 Read power 28.2.3 Read amplifiers 28.2.4 Analog-to-binary converters 28.2.5 Error correction 28.2.6 Tracking 29 Minimum Quality of a Sector 29.1 Headers 29.1.1 Sector Mark 29.1.2 ID fields 29.2 User-written data 30 Data interchange requirements 30.1 Tracking 56 57 57
30、 57 57 57 57 57 57 57 57 57 58 59 59 59 59 59 59 60 60 60 60 61 61 63 63 63 63 63 63 63 63 63 63 63 64 64 64 64 64 64 ECMA ECMA-223 95 = 3404593 0022651 04T - vi - 30.2 User-written data 30.3 Quality of disk Annexes Annex A - Edge distortion test Annex B - Compliance test Annex C - Track deviation m
31、easurement Annex D - CRC for ID fields Annex E - Format of the Data field of a sector Annex F - Contents of the Control Zones Annex G - Guidelines for sector replacement Annex H - Measurement of the figure of merit Annex J - Read power, write power and erase power Annex K - Test method for measuring
32、 the adsorbent force of the hub Annex L - Derivation of the operating climatic environment Annex M - Air cleanliness class 100 O00 Annex N - Position of the cartridge relative to the reference planes AnnexP - Transportation Annex Q - Office environment Annex R - Relaxation by zones of the requiremen
33、ts for signais Annex S - GCR Recording Codes 64 64 65 67 69 73 75 81 89 91 93 95 97 101 101 105 107 109 111 ECMA ECMA-223 95 3404593 0022652 Tb Section 1 - General 1 2 2.1 2.2 2.3 2.4 3 Scope This ECMA Standard specifies the characteristics of 90 mm Optical Disk Cartridges, (ODCs) with a capacity of
34、 385 Mbytes per cartridge. The Standard specifies one type of such cartridge, viz. Type R/w Provides for data to be written, read and erased many times over the whole of the recording surface of the disk using the thermo-magnetic and magneto-optical effects. This ECMA Standard specifies: - the condi
35、tions for conformance testing and the Reference Drive; - the environments in which the cartridges are to be operated and stored; - the mechanical and physical characteristics of the cartridge, so as to provide mechanical interchangeability between data processing systems; - the format of the informa
36、tion on the disk, both embossed and user written; including the physical disposition of the tracks and sectors, the error correction codes and the modulation method used; - the characteristics of the embossed information on the disk; - the magneto-optical characteristics of the disk, enabling proces
37、sing systems to write data onto the disk; - the minimum quality of user-written data on the disk, enabling data processing systems to read data from the disk. This ECMA Standard provides for media interchange between optical disk drives. Together with a Standard for volume and file structure, it pro
38、vides for full data interchange between data processing systems. Conformance Optical disk cartridge (ODC) A 90 mm optical disk cartridge claiming conformance with this ECMA Standard shall be in conformance if it meets all mandatory requirements specified herein. Annex R specifies the zones of the di
39、sk in which the requirements for the signal characteristics given in the body of this ECMA Standard shall be met, and the zones in which a relaxation of these requirements is permitted. Generating system A system generating an ODC for interchange shall be entitled to claim conformance with this ECMA
40、 Standard if it meets all of the mandatory requirements of this Standard. Receiving System A system receiving an ODC for interchange shall be entitled to claim conformance to this ECMA Standard if it is able to process any recording made on the cartridge according to 2.1. Compatibility Statement I A
41、 claim of conformance by a Generating or Receiving system with this ECMA Standard shall include a statement listing any other ECMA and/or International Standard(s) supported. This statement shall specify the number of the Standard(s), the ODC type(s) supported (where appropriate) and whether support
42、 includes reading or both reading and writing. References The following Standards contain provisions which, through reference in this text, constitute provisions of this ECMA Standard. At the time of publication, the edition indicated was valid. All Standards are subject to revision, and parties ECM
43、A ECMA-223 95 W 3404593 0022b53 912 M -2- to agreements based on this ECMA Standard are encouraged to investigate the possibility of applying the most recent edition of the Standards listed below. ECMA-129 (1994), ECMA-201 (1 994) Information Technology Equipment - Safety Data Interchange on 90 mm O
44、ptical Disk Cartridges - Capacity: 230 Megabytes 4 Definitions For the purpose of this ECMA Standard the following definitions apply. 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 band Part of the Data Zone comprising a fixed number of consecutive physical tracks. case The housin
45、g for an optical disk, that protects the disk and facilitates disk interchange. Channel bit The smallest element of data on a disk. It is recorded as either a space or a mark. Nine Channel bits are used to represent eight input bits. clamping zone The annular part of the disk within which the clampi
46、ng force is applied by the drive media clamping device. control track A track containing the information on media parameters and format necessary for reading, Wnting and erasing the remaining tracks on the optical disk Cyclic Redundancy Check (CRC) A method for detecting errors in data. defect manag
47、ement A method for handling the defective areas on the disk. disk reference plane A plane defined by the perfectly 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. embossed mark A mark so formed as to be unalte
48、rable by magneto-optical means. entrance surface The surface of the disk on to which the optical beam first impinges. Error Correction Code (ECC) An error-detecting code designed to correct certain kinds of errors in data. field % A subdivision of a sector. format The arrangement or layout of inform
49、ation on the disk. fully rewritable disk An optical disk in which all fields in the Data Zone can be rewritten by an optical beam. groove See land and groove ECMA ECMA-223 95 3404593 0022b54 859 M 4.16 4.17 4.18 4.19 4.20 4.21 4.21.1 4.22 4.23 4.24 4.25 4.26 4.27 4.28 -3- hub The centrai feature on the disk which interacts with the spindle of the disk drive to provide radiai centring and the clamping force. interleaving The process of allocating the physical sequence of units of data so as to render the data more immune to burst errors Kerr rotation The rotation of the plane of polariz
