IEC 62702-1-2:2017

Audio archive system - Part 1-2 : BD disk and data migration for long-term audio data storage

IEC 62702-1-2:2017(E) specifies a method of data-quality assurance for writable disks which are specified for long-term data storage, and a data migration method, which can sustain the recorded data on disks for long-term audio data preservation. The writable disks include Blu-ray Disk (BD) Recordable disk and BD Rewritable disk.
This document specifies the physical and logical aspects for a standard of audio archives of various storage types which are typically used for audio archives in markets.
The IEC 62702 series consists of:
- IEC 62702-1, which specifies the minimum requirements on physical aspects of optical disks for digital sound recordings; IEC 62702-1-1 specifies requirements for DVD optical disks, IEC 62702-1-2 specifies requirements for BD optical disks.
- IEC 62702-2, which specifies the minimum requirements for digitization of content, format of digitized content, content information and media inspection.

General Information

• Status: Published
• Publication Date: 06-Nov-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.30 - Audio systems
• ICS: 35.220.30 - Optical storage devices
• Technical Committee: TA 6 - Storage media, storage data structures, storage systems and equipment
• Current Stage: DELPUB - Deleted Publication
• Start Date: 26-Feb-2021
• Completion Date: 13-Jun-2022

Relations

• Revised: IEC 62702-1-2:2022 - Audio archive system - Part 1-2 : BD disk and data migration for long-term audio data storage
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62702-1-2 ®
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
colour
inside
Audio archive system –
Part 1-2: BD disk and data migration for long-term audio data storage
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IEC 62702-1-2 ®
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
colour
inside
Audio archive system –
Part 1-2: BD disk and data migration for long-term audio data storage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.30; 35.220.30 ISBN 978-2-8322-4919-2

– 2 – IEC 62702-1-2:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 9
4 Disk and lifetime for long term audio data storage . 9
4.1 Disk for long term audio data storage . 9
4.2 Lifetime estimation . 9
4.3 B Life for long-term audio data storage . 10

mig
4.4 Estimated lifetime rank and display colour . 11
4.4.1 Estimated lifetime rank and display colour identification . 11
4.4.2 B Life and display colour indication on disks and packages . 11
mig
5 Test condition, test methods and disks for audio data migration . 11
5.1 Ambient conditions for testing . 11
5.2 Test methods . 11
5.2.1 General . 11
5.2.2 Max RSER . 11
5.2.3 Test area of recorded disk . 11
5.3 Test drive calibration. 11
6 Test result evaluation . 12
6.1 Initial performance test result evaluation . 12
6.2 Periodic performance test evaluation . 12
6.3 Reporting items. 13
6.3.1 Initial performance test result . 13
6.3.2 Periodic performance test result . 13
6.4 Management of reporting items . 13
6.5 Test and migration intervals . 13
7 Prevention of deterioration . 14
Annex A (informative) Guideline of usage and indication . 15
A.1 Usage of lifetime rank . 15
A.2 Lifetime rank indication and place . 15
A.2.1 Lifetime rank indication . 15
A.2.2 Indication example . 15
Annex B (informative) Recommendations on handling, storage and cleaning conditions
for BD writable disks . 16
B.1 Handling . 16
B.2 Storage . 16
B.3 Cleaning . 17
Annex C (informative) Causes of deterioration for BD disks for long-term data storage . 18
C.1 Deterioration . 18
C.2 Disk structure. 18
C.3 Causes of deterioration . 18
C.4 Nature of deterioration . 19
C.5 Effects of deterioration . 19

C.6 Unexpected deterioration . 19
Bibliography . 20

Figure 1 – Data migration flow for the initial and the periodic performance tests . 13
Figure A.1 – Lifetime rank indication example . 15

Table 1 – Category of initial recording performance . 12
Table 2 – Category of recording performance at periodic performance . 12
Table B.1 – Recommended conditions for general storage . 16
Table B.2 – Recommended conditions for controlled storage . 16

– 4 – IEC 62702-1-2:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUDIO ARCHIVE SYSTEM –
Part 1-2: BD disk and data migration for long-term audio data storage

FOREWORD
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International Standard IEC 62702-1-2 has been prepared by technical area 6: Storage media,
storage data structures, storage systems and equipment, of IEC technical committee 100:
Audio, video and multimedia systems and equipment.
The text of this International Standard is based on the following documents:
CDV Report on voting
100/2894/CDV 100/2970/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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