1、Standardizing Information am 3Ll04593 0033026 Ob7 Standard ECMA-153 2nd Edition - June 1994 Communication Systems Information Interchange on 130 mm Optical Disk Cartridges of the Write Once, Read Multiple (WORM) Type, using the Magneto-Optical Effect - Phonr 41 22 735.36.34 - hx: 4122 786.52.31 - X.
2、100: C=ch; Atarcom, P=ecma, O=genevanet, OUl=ecma, S=helpdesk - Interna: HelpdeskECMA.CH - 9 3404593 0033029 TT3 Standard ECMA-153 2nd Edition - June 1994 ECMA Standardizing Information and Communication Systems Information Interchange on 130 rnrn Optical Disk Cartridges of the Write Once, Read Mult
3、iple (WORM) Type, using the Magneto-Optical Effect Phone: +41 22 735.36.34 - Fax: +41 22 786.52.31 - X.400: C=ch; A=arcom, P=ecma, O=genevanet, OUl=ecma, .%helpdesk - Internet: HelpdeskECMA.CH IW -E-153- 23.09.94 10.28 D 3404593 0033030 715 Brief History Technical Committee ECMA TC3 1 for Optical Di
4、sk Cartridges was set up in 1984. The Committee made major contributions to ISOAEC/JTCl/SC23 for the development of 130 mm WORM Optical Disk Cartridges USOIIEC 9171) and of 130 mm Rewritable Optical Disk Cartridges using the Magneto-Optical effect. (ISOIIEC 10089). ECMA produced the camera-ready cop
5、ies for these International Standards. In addition, ECMA published the following Standards: ECMA-130 ECMA-154 The former has been adopted by ISOAEC as International Standard ISOIIEC 10149. ECMA-154 has been adopted as International Standard ISOAEC 10090. Whilst the optical disk cartridge according t
6、o Standard ECMA-154 contains a disk, which can be either fully pre-recorded, i.e. the data are embossed in the disk, or fully rewritable or may contain zones of either type, the present Standard ECMA-153 specifies an optical disk cartridge of a larger dimension (1 30 mm instead of 90 mm) which, like
7、 that of ISOIIEC 9171, is of the write-once-read-multiple type (WORM). The disk used for this purpose is that specified in ISOAEC 10089 which is different from that specified in ISOAEC 9171. ECMA-153 has been adopted by ISOAEC as International Standard ISOIIEC 11560. Data Interchange on Read-only 12
8、0 mm Optical Data Disks (CD-ROM) Data Interchange on 90 mm Optical Disk Cartridges, Read Only and Rewritable, M.O. Adopted as 2nd Edition of Standard ECMA-153 by the General Assembly of June 1994. 1 2 3 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.1 1 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.2
9、1 4.22 4.23 4.24 4.25 4.26 4.27 5 5.1 5.2 6 7 8 8.1 - = 3404593 0033031 651 -i- Table of contents Page Scope Conformance References Definitions Case Clamping zone Control track Cyclic Redundancy Check (CRC) Defect management Disk reference plane Entrance surface Error Correction Code (ECC) Format Hu
10、b Interleaving Kerr rotation Land and groove Mark Optical disk Optical disk cartridge (ODC) Polarization he-recorded mark Read power Recording layer Reed-Solomon code Spindle Substrate Track Track pitch Write-inhibit hole Write once optical disk Conventions and notations Representation of numbers Na
11、mes List of acronyms General description of the optical disk cartridge General requirements Environments 8.1.1 Testing environment 8.1.2 Operating environment 8.1.3 Storage environment 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 4 4 9 Safety requirements W 3404593 0033032 598 W -
12、 11 - 8.1.4 Transportation 10 Dimensional and mechanical characteristics of the case 10.1 10.2 Case drawings 10.3 General description of the case Sides, reference axes and reference planes 10.3.1 10.3.2 Relationship of Sides A and B Reference axes and case reference planes 10.4 10.5 10.6 10.7 10.8 1
13、0.9 10.10 10.11 10.12 10.13 10.14 10.15 10.16 10.17 10.18 Materiais Mass Overall dimensions Location hole Alignment hole Surfaces on reference planes P Insertion slots and detent features Gripper slots Write-inhibit holes Media sensor holes Head and motor window Shutter Slot for shutter opener Shutt
14、er sensor notch User label areas 11 Dimensional and physical characteristics of the disk 1 1.1 Dimensions of the disk 1 1.1.1 Outer diameter 1 1.1.2 Thickness 1 1.1.3 Clamping zone 1 1.1.4 Clearance zone 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 Mass Moment of inertia Imbalance Axial deflection Axial
15、acceleration Dynamic radiai runout Radial Acceleration Tilt 12 Drop test 13 Interface between disk and drive 13.1 Clamping technique 13.2 Dimensions of the hub 13.2.1 13.2.2 Height of the hub 13.2.3 13.2.4 13.2.5 13.2.6 Chamfer at diameter D9 13.2.7 Chamfer at diameter D8 Outer diameter of the hub D
16、iameter of the centre hole Height of the top of the centre hole at diameter D9 Centring length at diameter D9 5 5 5 5 5 6 6 6 6 6 6 7 7 8 8 9 9 10 10 11 11 11 11 12 12 12 12 12 12 12 12 12 12 13 13 13 13 13 13 13 13 13 13 14 13 14 14 14 13.2.8 13.2.9 13.2.10 13.2.1 1 Outer diameter of the magnetizab
17、le ring Inner diameter of the magnetizable ring Thickness of the magnetizable material Position of the top of the magnetizable ring relative to the disk reference plane 13.3 Magnetizable material 13.4 Clamping force 13.5 13.6 Capture cylinder for the hub Disk position in the operating condition 14 C
18、haracteristics of the substrate 14.1 Index of refraction 14.2 Thickness 15 Characteristics of the recording layer 15.1 Test Conditions 15.1.1 General 15.1.2 Read conditions 15.1.3 Write conditions 15.1.4 Erase conditions 15.2 Baseline reflectance 15.2.1 General 15.2.2 Actual value 15.2.3 Requirement
19、 15.3 Magneto-optical recording in the User Zone 15.3.1 Resolution 15.3.2 Imbalance of magneto-optical signal 15.3.3 15.3.4 Narrow-band signal-to-noise ratio 15.3.5 Cross-talk ratio 15.3.6 Ease of erasure Figure of ment for magneto-optical signal 16 Diskformat 16.1 Track geometry 16.1.1 Track shape
20、16.1.2 Direction of rotation 16.1.3 Track pitch 16.1.4 Track number 16.2 Formatted Zone 16.3 Control Tracks 16.4 Control track PEP Zone 16.4.1 16.4.2 Cross-track loss 16.4.3 Recording in the PEP Zone Format of the tracks of the PEP Zone 16.5 Control Track SFP Zones 16.5.1 16.5.2 Media information 16
21、.5.3 System information 16.5.4 Unspecified content Duplicate of the PEP information 16.6 Requirements for interchange of a User-Recorded cartridge 14 14 14 14 14 14 14 15 30 30 30 30 30 30 30 31 31 32 32 32 32 32 32 32 33 33 33 34 34 34 34 34 34 34 34 35 35 36 36 37 40 40 41 48 48 48 W 3404593 00330
22、34 360 M - iv - 16.6.1 Requirements for reading 16.6.2 Requirements for writing and erasing 17 Trackformat 17.1 Track layout 17.1.1 Tracking 17.1.2 Characteristics of pre-recorded information 17.2 Sector format 17.2.1 Sector Mark (SM) 17.2.2 VFOareas 17.2.3 Address Mark (AM) 17.2.4 ID and CRC 17.2.5
23、 Postamble (PA) 17.2.6 Offset Detection Field (ODF) 17.2.7 Gap 17.2.8 Flag 17.2.9 17.2.10 Sync 17.2.1 1 Data field 17.2.12 Buffer 17.3 Recording code 17.4 Defect management Auto Laser Power Control (ALPC) 17.4.1 Media initialization 17.4.2 Write and read procedure 17.4.3 Layout of the User Zone 17.4
24、.4 Summary of the location of the zones on the disk Annex A - Optical system for measunng write, read and erase characteristics Annex B - Detinition of write and erase pulse width Annex C - Measurement of figure of ment Annex D - Values to be implemented in existing and future standards Annex E - Gu
25、idelines for the use of ODCs Annex F - CRC for ID fields Annex G - Interleave, CRC, ECC, Resync for the Data field Annex H - Sector retirement guidelines Annex J - Office environment 48 48 48 48 48 49 51 53 53 53 53 54 54 54 54 54 54 54 55 55 55 56 56 57 61 63 65 67 69 71 73 75 81 83 Annex K - Trans
26、portation 85 Annex L - Requirements for interchange 87 STD.ECMA ECMA-153-ENGL 1994 m 3404593 0033035 2T7 m 1 Scope This ECMA Standard specifies - - - - - definitions of the essential concepts; the environment in which the characteristics are to be tested; the environments in which the cartridge are
27、to be operated and stored; the mechanical, physical and dimensionai characteristics of the case and of the optical disk; the magneto-optical characteristics and the recording characteristics for initializing the disk once, for recording the information once, for reading it many times, so as to provi
28、de physical interchangeability between data processing systems; the format for the physical disposition of the tracks and sectors, the error correction codes, the modulation method used for recording and the quality of the recorded signals. - 2 Conformance A 130 mm optical disk cartridge is in confo
29、rmance with this ECMA Standard if it meets ail the mandatory requirements specified herein. 3 References IS0 683-1311986 ISO/IEC9171-1:1990 Heat treatable steels, alloy steels and free-cutting steels - Wrought stainless steels Information technology - 130 mm optical disk cartridge, write once, for i
30、nformation interchange - Part 1 : Unrecorded optical disk cartridge Information Technology Equipment - Safety ECMA-129 4 Definitions For the purposes of this ECMA Standard, the following definitions apply. 4.1 Case The housing for an optical disk, that protects the disk and facilitates disk intercha
31、nge. 4.2 Clamping zone The annular part of the disk within which the clamping force is applied by the clamping device. 43 Control track A track containing the information on media parameters and format necessary for writing, reading and erasing the remaining tracks on the optical disk. 4.4 Cyclic Re
32、dundancy Check (CRC) A method for detecting errors in data. 4.5 Defect management A method for handling the defective areas on the disk. 4.6 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 i
33、s normal to the axis of rotation. 4.7 Entrance surface The surface of the disk on to which the optical beam first impinges. 4.8 Error Correction Code (ECC) An error-detecting code designed to correct certain kinds of errors in data. 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 STD
34、-ECMA ECMA-153-ENGL 1994 D 3404593 0033036 133 W -2- Format The arrangement or layout of the data on the disk. Hub The central feature on the disk which interacts with the spindle of the disk drive to provide radial centring and the clamping force. interleaving The process of allocating the physical
35、 sequence of units of data so as to render the data more immune to burst errors. Kerr rotation The rotation of the plane of polaxization of an optical beam upon reflection from the recording layer as caused by the magneto-optical Kerr effect. Land and groove A trench-like feature of the disk, applie
36、d before the recording of any information, and used to define the track location. The groove is located nearer to the entrance surface than the land with which it is paired to form a track. Mark A feature of the recording layer which may take the form of a magnetic domain, a pit, or any other type o
37、r form that can be sensed by the optical system. The pattern of marks represents the data on the disk. NOTE 1 Subdivisions of a sector which are named mark are not marks in the sense of this definition. Optical disk A disk that will accept and retain information in the form of marks in a recording l
38、ayer, that can be read with an optical beam. Opticai disk cartridge (ODC) A device consisting of a case containing an optical disk. Polarization The direction of polarization of an optical beam is the direction of the electric vector of the beam. NOTE 2 The plane of polarization is the plane contain
39、ing the electric vector and the direction of propagation of the beam. The polarization is right-handed when to an observer looking in the direction of propagation of the beam the end- point of the electric vector would appear to describe an ellipse in the clockwise sense. Pre-recorded mark A mark so
40、 formed as to be unalterable by magneto-optical means. Read power The read power is the optical power, incident at the entrance surface of the disk, used when reading. NOTE 3 It is specified as a muximum power that may be used without damage to the written data. tower power may be used providing tha
41、t the signal-to-noise ratio and other requirements of this ECMA Standard are met. Recording layer A layer of the disk on, or in, which data is written during manufacture andor use. Reed-Solomon code An error detection andor correction code which is particularly suited to the correction of errors whi
42、ch occur in bursts or are strongly correlated. STD-ECMA ECMA-153-ENGL 1774 W 3404573 0033037 07T W -3- 4.22 Spindle The part of the disk drive which contacts the disk and/or hub. 4.23 Substrate A transparent layer of the disk, provided for mechanical support of the recording layer, through which the
43、 optical beam accesses the recording layer. 4.24 Track The path which is followed by the focus of the optical beam during one revolution of the disk. 4.25 Track pitch The distance between adjacent track centrelines, measured in a radial direction. 4.26 Write-inhibit hole A hole in the case which, wh
44、en detected by the drive to be open, inhibits both write and erase operations. 4.27 Write once optical disk An optical disk in which the data in specified areas can be written only once and read many times by an optical beam. 5 Conventions and notations 5.1 Representation of numbers a) In each field
45、 the information is recorded so that the most significant byte (byte O) is recorded first. Within each byte the least significant bit is numbered bit O, the most significant bit (i.e. bit 7 in an 8-bit byte) is recorded first. This order of recording applies also to the data input of the error-corre
46、cting codes, to the cyclic redundancy code, and to their code output. Unless otherwise stated, numbers are expressed in binary notation. Where hexadecimal notation is used, the hexadecimal digits are shown between parentheses. Bit combinations are shown with the most significant bit to the left. Neg
47、ative values are expressed in Iwos complement notation. The setting of bits is denoted by ZERO and ONE. b) c) d) e) 5.2 Nama The name of entities, e.g. specific tracks, fields, etc., is shown with a capital initial. 6 List of acronyms ALPC Auto Laser Power Control AM Address Mark CAV Constant Angula
48、r Velocity CRC Cyclic Redundancy Check DDS Disk Definition Sector DMA Defect Management Area DMP Defect Management Pointer DMT Defect Management Track ECC Error Correction Code EDAC ID Identifier LBA Logical Block Address OM- Optical Disk Cartridge ODF Offset Detection Field PA Postamble PDL Primary
49、 Defect List PEP Error Detection and Correction Code Phase-Encoded Part of the Control Tracks STD.ECMA ECMA-153-ENGL I774 3404573 0033038 Tob -4- RLL2,7) Run Length Limited (code) R-S Reed-Solomon (code) R-SUC Reed-Solomon Long Distance Code SDL Secondary Defect List SFT SM Sector Mark VFO Variable Frequency Oscillator Standard Formatted Part of the Control Tracks 7 General description of the optical disk cartridge The optical disk cartridge which is the subject of this ECMA Standard consists of a case containing an optical disk. An optical beam is used to Wnte data t
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