ID format for 50 mm magneto-optical disc system

This International Standard specifies the characteristics of 50 mm Optical Disc Cartridges (ODC) with a capacity of 730 Mbytes per Cartridge. This regulation covers the logical format of removable 50 mm magneto-optical discs used on digital still cameras, digital movie cameras, electronic albums and similar devices and combinations of these devices that record, play or process the digital data of still pictures, motion pictures and audio. This standard specifies the recording and reproducing format and processing method of files of still pictures, motion pictures and audio on 50 mm magneto-optical discs so that the users can use these discs on various compatible devices.

ID-Format für das magneto-optische System mit 50 mm Platte

Format de l'Identifiant pour un système à disque magnéto-optique de 50 mm

La CEI 62345:2005 spécifie les caractéristiques des cartouches de disque optique (ODC) de 50 mm d'une capacité de 730 Mo par cartouche. Cette réglementation recouvre le format logique des disques magnéto-optiques amovibles de 50 mm utilisés sur des appareils photographiques numériques, des caméras vidéo numériques, des albums électroniques et des dispositifs similaires ainsi que des combinaisons de ces dispositifs qui enregistrent, lisent ou traitent les données numériques d'images fixes, d'images animées et d'audio. La présente norme spécifie le format d'enregistrement et de reproduction et la méthode de traitement de fichiers d'images fixes, d'images animées et d'audio sur des disques magnéto-optiques de 50 mm, de façon que les utilisateurs puissent utiliser ces disques sur divers dispositifs compatibles. La présente version bilingue (2012-11) correspond à la version anglaise monolingue publiée en 2005-09.

Format ID za 50-milimetrski magnetno-optični diskovni sistem (IEC 62345:2005)

General Information

Status
Published
Publication Date
31-Dec-2005
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2006
Due Date
01-Jan-2006
Completion Date
01-Jan-2006

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SLOVENSKI SIST EN 62345:2006
STANDARD
januar 2006
Format ID za 50-milimetrski magnetno-optični diskovni sistem (IEC
62345:2005)
(istoveten EN 62345:2005)
ID format for 50 mm magneto-optical disc system (IEC 62345:2005)
ICS 33.160.40 Referenčna številka
SIST EN 62345:2006(en)

© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD EN 62345
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2005
ICS 33.160.40
English version
ID format for 50 mm magneto-optical disc system
(IEC 62345:2005)
Format de I’identifiant pour un système ID-Format für das magneto-optische
à disque magnéto-optique de 50 mm System mit 50 mm Platte
(CEI 62345:2005) (IEC 62345:2005)

This European Standard was approved by CENELEC on 2005-02-01. CENELEC members are bound to

comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on

application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CENELEC member into its own language and

notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,

Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62345:2005 E
---------------------- Page: 2 ----------------------
EN 62345:2005 - 2 -
Foreword

The text of document 100/870/FDIS, future edition 1 of IEC 62345, prepared by IEC TC 100, Audio,

video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and

was approved by CENELEC as EN 62345 on 2005-02-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-02-01

The International Electrotechnical Commission (IEC) and CENELEC draw attention to the fact that it is

claimed that compliance with this document may involve the use of a patent.

The IEC and CENELEC take no position concerning the evidence, validity and scope of this patent

right.

The holder of this patent right has assured the IEC that he/she is willing to negotiate licences under

reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this

respect, the statement of the holder of this patent right is registered with the IEC.

Information may be obtained from:
Sanyo Electric Co., Ltd.
5-5, Keihan-hondori 2-chome,
Moriguchi City, Osaka, 570-8677, Japan

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights other than those identified above. IEC and CENELEC shall not be held responsible for

identifying any or all such patent rights.
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 62345:2005 was approved by CENELEC as a European

Standard without any modification.
__________
---------------------- Page: 3 ----------------------
- 3 - EN 62345:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
Publication Year Title EN/HD Year
IEC 60950-1 2001 Information technology equipment - EN 60950-1 2001
(mod) Safety + A11 2004
Part 1: General requirements + corr. April 2004
ISO/IEC 13346-1 1995 Information technology - Volume and file - -
structure of write-once and rewritable
media using non-sequential recording for
information interchange
Part 1: General
---------------------- Page: 4 ----------------------
INTERNATIONAL IEC
STANDARD 62345
First edition
2005-03
ID format for 50 mm magneto-optical
disc system
 IEC 2005  Copyright - 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 microfilm, without permission in writing from the publisher.

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland

Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch

PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
---------------------- Page: 5 ----------------------
– 2 – 62345  IEC:2005(E)
CONTENTS

FOREWORD.........................................................................................................................7

1 Scope ............................................................................................................................9

2 Normative references .....................................................................................................9

3 Terms and definitions .....................................................................................................9

4 Conventions and notations............................................................................................12

4.1 Representation of numbers ..................................................................................12

4.2 Names ................................................................................................................12

5 List of acronyms ...........................................................................................................13

6 General description of the optical disc cartridge ............................................................13

7 General requirements ...................................................................................................14

7.1 Environments ......................................................................................................14

7.2 Temperature shock..............................................................................................14

7.3 Safety requirements.............................................................................................15

8 Reference drive ............................................................................................................15

8.1 Optical system.....................................................................................................15

8.2 Optical beam .......................................................................................................16

8.3 Read channels ....................................................................................................16

8.4 Tracking ..............................................................................................................17

8.5 Rotation of the disc..............................................................................................17

9 Mechanical and physical characteristics........................................................................17

9.1 Dimensional and physical characteristics of the cartridge .....................................17

9.2 Dimensional, mechanical and physical characteristics of the disc..........................27

9.3 Interface between cartridge and drive ..................................................................32

10 Format of information ...................................................................................................33

10.1 Track geometry ...................................................................................................33

10.2 Track format ........................................................................................................34

10.3 Frame format.......................................................................................................35

10.4 ECC Block format ................................................................................................42

10.5 Recording code ...................................................................................................43

10.6 Format of the Information Zone ............................................................................45

10.7 Format of the Data Zone ......................................................................................46

10.8 Defect Management.............................................................................................51

11 Characteristics of embossed information .......................................................................55

11.1 Method of testing.................................................................................................55

11.2 Signals from grooves (see Figure 26)...................................................................56

11.3 Signals from wobble groove (see Figure 27).........................................................57

11.4 Signal from fine clock marks (see Figure 28) ........................................................58

12 Characteristics of the recording layer ............................................................................59

12.1 Method of testing.................................................................................................59

12.2 Magneto-optical characteristics............................................................................60

13 File system...................................................................................................................63

13.1 Volume................................................................................................................63

13.2 File .....................................................................................................................73

---------------------- Page: 6 ----------------------
62345  IEC:2005(E) – 3 –

14 File format of Sound and Images ..................................................................................78

14.1 General ...............................................................................................................78

14.2 Directory Structure ..............................................................................................78

14.3 File Format..........................................................................................................79

Annex A (normative) Air cleanliness class 100000 ..............................................................82

Annex B (normative) Measurement method of reference plane flatness...............................83

Annex C (normative) Measurement method of cartridge flatness .........................................84

Annex D (normative) Measurement method of cartridge curvature.......................................85

Annex E (normative) Test method for measuring the friction force.......................................86

Annex F (normative) Format of the Data Field ....................................................................88

Annex G (normative) Contents of Control Tracks ................................................................95

Annex H (normative) Relaxation by zones of the requirement for signals.............................99

Annex I (informative) Transportation.................................................................................100

Annex J (informative) Track deviation measurement .........................................................101

Annex K (informative) Digital still camera image file format standard – Exif .......................105

Annex L (informative) Design Rule for Camera File System – DCF....................................106

Annex M (informative) Movie file format – QuickTime........................................................107

Figure 1 – Optical system of the reference drive ..................................................................15

Figure 2 – Outline of cartridge.............................................................................................18

Figure 3 – Cartridge reference line and reference plane.......................................................19

Figure 4 – Cartridge Top and Side View ..............................................................................23

Figure 5 – Cartridge Bottom View........................................................................................24

Figure 6 – Shutter...............................................................................................................25

Figure 7 – Shutter lock........................................................................................................25

Figure 8 – Holding area ......................................................................................................26

Figure 9 – Screw location....................................................................................................26

Figure 10 – Disc dimensions ...............................................................................................28

Figure 11 – Thickness of the protective coating ...................................................................32

Figure 12 – Gap between the disc and the internal wall of the cartridge ...............................33

Figure 13 – Track layout .....................................................................................................34

Figure 14 – Layout of the Address Segment ........................................................................35

Figure 15 – Wolbble Pattern of the Address Segment………………………………………........ .35

Figure 16 – Layout of the Data Segment .............................................................................39

Figure 17 – The patterns of the Pre-write field and the Post-write field .................................40

Figure 18 – ECC Block layout .............................................................................................42

Figure 19 – Header.............................................................................................................43

Figure 20 – NRZI Plus convolution method ..........................................................................44

Figure 21 – NRZI Plus convolution method ..........................................................................44

Figure 22 – Layout of the Data Zone and Test Zones...........................................................47

Figure 23 – Structure of Logical Zone..................................................................................51

---------------------- Page: 7 ----------------------
– 4 – 62345  IEC:2005(E)

Figure 24 – Structure of PDL entry ......................................................................................54

Figure 25 – Structure of SDL entry ......................................................................................55

Figure 26 – Signals from grooves........................................................................................57

Figure 27 – Signals from wobbled groove ............................................................................57

Figure 28 – Signals from fine clock marks ...........................................................................58

Figure 29 – Radial push-pull signal and envelope of fine clock mark ....................................58

Figure 30 – Recording magnetic field shape and Write pulse ...............................................60

Figure 31 – Resolution........................................................................................................61

Figure 32 – Spectrum analyser display ................................................................................61

Figure 33 – Crosstalk test pattern .......................................................................................62

Figure 34 – Directory structure including motion picture.......................................................79

Figure A.1 – Particle size distribution curve .........................................................................82

Figure B.1 – Measurement method of reference plane flatness ............................................83

Figure C.1 – Measurement method of cartridge flatness ......................................................84

Figure D.1 – Measurement method of cartridge curvature ....................................................85

Figure E.1 – Arrangement of testing chip and disc for the measurement of friction force.......86

Figure E.2 – Shape of testing chip.......................................................................................87

Figure E.3 – Test cycle .......................................................................................................87

Figure F.1 – Processing flow to generate Data unit 1 ...........................................................88

Figure F.2 – Processing flow to generate Data unit 2 and Data unit 3...................................88

Figure F.3 – Data unit 1 configuration..................................................................................89

Figure F.4 – Data ID information .........................................................................................89

Figure F.5 – Feedback shift register for generation scramble data........................................92

Figure F.6 – ECC block configuration ..................................................................................93

Figure F.7 – ECC block after row interleave.........................................................................94

Figure G.1 – Track layout of the Control Zone .....................................................................96

Figure G.2 – Layout of the Control Segment ........................................................................96

Figure G.3 – Unit of the Control Segment ............................................................................97

Figure J.1 – Maximum allowed amplitude of a sinusoidal track deviation ............................101

Figure J.2 – Implementation of a Reference Servo by filtering the track position signal

with the reduction characteristics of the Reference Servo ..................................................103

Figure J.3 – Implementation of a Reference Servo by changing the transfer function of

the actual servo ................................................................................................................103

Figure J.4 – Implementation of a Reference Servo by changing the tracking error of

the actual servo ................................................................................................................104

Table 1 – Write protection ...................................................................................................21

Table 2 – User hole ............................................................................................................22

Table 3 – Index hole ...........................................................................................................22

Table 4 – Nominal Address Data clock frequencies when the disc rotates at 50 Hz ..............41

Table 5 – Layout of the Information Zone ............................................................................45

Table 6 – Locations of the DMAs.........................................................................................47

Table 7 – Byte assignment of the Disc Definition Structure (DDS) ........................................48

Table 8 – Assign of Logical Zone ........................................................................................49

---------------------- Page: 8 ----------------------
62345  IEC:2005(E) – 5 –

Table 9 – Content of the PDL ..............................................................................................53

Table 10 – Content of the SDL ............................................................................................54

Table 11 – OSTA CS0 Charspec .........................................................................................63

Table 12 – Time stamp .......................................................................................................64

Table 13 – Domain Entity Identifier......................................................................................64

Table 14 – Domain Identifier Suffix......................................................................................64

Table 15 – UDF Entity Identifier ..........................................................................................65

Table 16 – UDF Identifier Suffix ..........................................................................................65

Table 17 – Implementation Entity Identifier ..........................................................................65

Table 18 – Implementation Identifier Suffix..........................................................................65

Table 19 – Beginning Extended Area Descriptor ..................................................................66

Table 20 – NSR Descriptor .................................................................................................66

Table 21 – Terminating Extended Area Descriptor ...............................................................66

Table 22 – Descriptor Tag...................................................................................................67

Table 23 – Anchor Volume Descriptor Pointer......................................................................67

Table 24 – Primary Volume Descriptor ................................................................................67

Table 25 – Implementation Use Volume Descriptor..............................................................68

Table 26 – Implementation Use of Implementation Use Volume Descriptor...........................68

Table 27 – Partition Descriptor............................................................................................69

Table 28 – Partition Contents..............................................................................................69

Table 29 – Partition Header Descriptor................................................................................69

Table 30 – Logical Volume Descriptor .................................................................................70

Table 31 – File Set Descriptor Extent Information ................................................................70

Table 32 – Integrity Sequence Extent Information................................................................71

Table 33 – Partition Maps ...................................................................................................71

Table 34 – Unallocated Space Descriptor ............................................................................71

Table 35 – Terminating Descriptor.......................................................................................71

Table 36 – Logical Volume Integrity Descriptor ....................................................................72

Table 37 – Logical Volume Contents Use ............................................................................72

Table 38 – Implementation..................................................................................................72

Table 39 – lb_addr (Logical Block Address).........................................................................73

Table 40 – short_ad (Short Allocation Descriptor) ................................................................73

Table 41 – long_ad (Long Allocation Descriptor)..................................................................73

Table 42 – File Set Descriptor.............................................................................................73

Table 43 – File Identifier Descriptor.....................................................................................74

Table 44 – d-characters ......................................................................................................74

Table 45 – File Entry...........................................................................................................75

Table 46 – ICB Tag.............................................................................................................76

Table 47 – Extended Attributes ...........................................................................................76

Table 48 – Extended Attributes Header Descriptor...............................................................76

Table 49 – File Times Extended Attribute ............................................................................77

Table 50 – Flags in ICB Tag................................................................................................77

Table 51 – Space Bitmap Descriptor ...................................................................................77

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– 6 – 62345  IEC:2005(E)

Table 52 – Allocation Extent Descriptor ...............................................................................78

Table F.1 – Initial value of shift register...............................................................................91

Table G.1 – Layout of the Control Zones .............................................................................95

Table H.1 – Requirements for signals in each zone .............................................................99

---------------------- Page: 10 ----------------------
62345  IEC:2005(E) – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ID FORMAT FOR 50 mm MAGNETO-OPTICAL
DISC SYSTEM
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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