SC 23

Revision July 2016

ISO/IEC JTC 1/SC 23 Digitally Recorded Media for Information Interchange and Storage

Scope: Standardization in the field of removable digital storage media utilizing optical, holographic and magnetic recording technologies, and flash memory technologies for digital information interchange, including:

– algorithms for the lossless compression of data

– volume and file structure

– methods for determining the life expectancy of digital storage media

– methods for error monitoring of digital storage media”.

History:


Pre JTC 1:

SC 23 was established by ISO/TC 97 at its 12th Plenary Meeting held in Stockholm, Sweden in 1984.  The Secretariat was assigned to JISC, Japan. The initial title was “Optical Digital Data Disk” and the area of work was “Standardization of optical digital data disk for media and data interchanged between information processing systems.  The Chairman appointed was Dr. Junichi Shimada (JP) and the Secretary was Mr. Takeo Misao from JSA, JISC.

ISO/TC 97/SC 23 had the following three plenary meetings:

– 1st Plenary: 1985-05, Tokyo, Japan

– 2nd Plenary: 1986-09-22/25, Geneva, Switzerland

– 3rd Plenary: 1987-10-13/16, Washington DC, USA

 

The sub-group structure was as follows:

– Clamping Method ad hoc group (Convenor: Mr. Mike Deese, ISA)

– Editorial Group for case Dimensions and Drawings

– Special Working Group on DP 9171-3 and 4 (Convenor: Dr. J.A. T. Veroeven, Netherlands)

– Editing ad hoc group on Terminology

During this period, SC 23 concentrated on its first project, standardization of 130 mm Write Once Optical Disk Cartridges.


 1987

ISO/IEC JTC 1 was established in 1987 and SC 23 became one of the SCs of JTC 1.  The first ISO/IEC JTC 1 Plenary was held in Tokyo, Japan, 1987-11.

1988

The first plenary meeting of JTC 1/SC 23 was held in Maastricht, Netherlands.  The title and the area of work of SC 23 were modified to “Optical Disk Cartridges for Information Interchange” and to “Standardization of optical disk cartridges for media and information interchange between information processing systems”.  SC 23 initiated the work other than the development of 130 mm Write Once ODC standard by establishing the following working groups.

WG 1: Permanent Editing Committee (Convenor: Mr. D Hekimi, Switzerland)
WG 2: Rewritable 90mm and 130mm ODCs (Convenor: Mr. Mike Deese, USA)
WG 3: 300 mm WORM ODCs (Convenor: Mr. R. Malissin, France)
WG 4: 130 mm WORM ODCs (Convenor: Dr. D. Visser, Netherlands)
1989

The second plenary meeting of SC 23 was held in Tokyo Japan, 1989-10-25/27.  At this plenary, SC 23 resolved to recommend JTC 1 to reactivate JTC 1/SC 15, Volume and file structure which had been disbanded.

1990

The third plenary meeting of SC 23 was held in Washington DC, USA, 1990-10-21/22.  WG 5 on 356mm WORM ODCs was established upgrading an ad hoc group (Convenor: Mr. R. Dreessen, USA).

  • Publication of ISO/IEC 9171- 1 and -2 (130 mm Write Once)

1991

The fourth plenary meeting of SC 23 was held in Sofia Bulgaria, 1991-09-12/13. At this meeting, WG 4 on 130 mm WORM ODCs was disbanded as there was no active project. Mr. Dara Hekimi stepped down from the WG 1 Convenor and Mr. J. van den Beld replaced the position.

  • Publication of ISO/IEC 10089 (130mm ODCs)

1993

The fifth plenary meeting of SC 23 was held in Eindhoven, Netherlands, 1993-04-22/23. Dr. Junichi Shimada stepped down from the chairman’s position. Dr. Yoshinobu Mitsuhashi was endorsed as the new chairman for appointment by JTC 1 in 1994.

  • Publication of ISO/IEC 10885 (356 mm Write once)

1994

The sixth plenary meeting of SC 23 was held in Geneva, Switzerland, 1994-11-03/04 following the JTC 1 plenary held in the previous week.  At the JTC 1 plenary, SC 11 and SC 23 were requested to consider introducing a guideline for timely verification of technical data in draft standards.

1995

The seventh plenary meeting of SC 23 was held in Seoul, Republic of Korea, 1995-10-26/27.  The dissolution of SC 15 was discussed in response to the JTC 1’s request.

  • Publication of TR 13841 (Guidance on Measurement techniques for 90 mm ODCs)
  • Publication of TR 10091 (130 mm ODC, Write-once)
  • Publication of ISO/IEC 13403 (300mm, WORM, CCS)
  • Publication of ISO/IEC 13614 (300 mm, WORM, SSF)

1996

The eighth plenary meeting of SC 23 was held in Berlin, Germany, 1996-10-24/25. WG 3 on 300mm ODCs and WG 5 on 356 ODCs were disbanded as there were no active work items.  The WG 2’s responsibilities were extended; its title was renamed “Development of Draft Standards for ODCs” and the reference to that specific ODC diameters were removed from the terms of reference.  SC 15 was disbanded by JTC 1 in June 1996.

  • Publication of ISO/IEC 13842 (130 mm, 2GB)
  • Publication of ISO/IEC 14517 (130 mm, 2,6GB)

1997

The ninth plenary meeting of SC 23 was held in Washington DC., USA, 1997-10-17.  Dr. Tomoyuki Toshima was endorsed as the new chairman for appointment by JTC 1 in 1998. The working groups existed were WG 1 for editing work and WG 2 for technical discussion for all types of ODCs.  This WG structure was decided to continue until the following plenary.

  • Publication of ISO/IEC 15041(90 mm, 640 MB)
  • Publication of ISO/IEC 14760 (90 mm Phase change, 1.3 Gbytes)

1998

The proposal to modify the scope of SC 23 to include “Volume and File Structure” was approved by JTC 1.  The modified scope was “Standardization of Optical Disk Cartridges for Media and Information Interchange between Information Processing Systems including their Volume and File Structure”

  • Publication of ISO/IEC 15486 (130 mm using irreversible effects, 2,6 Gbyte)

1999

The tenth plenary meeting of SC 23 was held in Beijing, China, 1999-10-29.  WG 1 and WG 2 were disbanded as there was no active project.  The BRM on fast-tracked revision of ISO 9960 was conducted in conjunction with this meeting.

2001

The eleventh plenary meeting of SC 23 was held in Lugano, Switzerland, 2001-10-10 collocated with the Ecma/TC 31 meeting.  SC 23 took notice of ISO/TC 42’s work on DIS 18926 (Imaging Materials — Life expectancy of Magneto-optical disks — Method for estimating based on effects of temperature and relative humidity).

2003

The Secretariat of JTC 1/SC 11 announced that it would relinquish its responsibility by the end of 2003.  Japan proposed JTC 1 that the work of SC 11 be merged to SC 23 and the proposal was accepted by JTC 1 at its 2003 plenary held in Singapore.

2004

The maintenance responsibilities of the SC 11 projects were moved to SC 23.  SC 23 reviewed the title and scope after merger with SC 11.  The following are the modified title and scope.

Title: Digital Storage Media for Information Interchange

Scope: Standardization in the field of removable digital storage media utilizing optical and/or magnetic recording technology for digital information interchange.

2005

The twelfth SC 23 plenary meeting was held in Kyoto, Japan, 2005-12-01 collocated with the Ecma/TC 44 (Holographic Information Storage Systems: HISS) meeting.  Invited industry experts gave presentations on the topics of Holographic storage and Archival storage.  Considering the growing market of those technical areas, SC 23 resolved to expand its title and scope to include those areas.

2006

After conducting a letter ballot and the subsequent communication, the title was changed to “Digitally Recorded Media for Information Interchange and Storage” and the scope was modified to:

“Standardization in the field of removable digital storage media (other than hard disks) utilizing optical, holographic and/or magnetic recording technologies for digital information interchange and/or storage, including:

– Algorithms for the lossless compression of data.

– Volume and file structures.

– Methods for determining the life expectancy of digital storage media.”

2007

The 13th plenary meeting of SC 23 was held in Montreux, Switzerland, 2007-09-20. To harmonize the scope of the SC 23 and the actual NP submitted (NP 29121), modification of the SC 23 scope was disccussed again.  It was resolved to add “Methods for error monitoring of digital storage media” to the Scope.

2008

The 14th plenary meeting of SC 23 was held in Jeju, Korea, 2008-12-17.  The following WGs were established.

WG 6: iVDR Cartridge (Convenor: Kei Yamashita)

Joint Working Group 1 with ISO/TC 42*: Development of optical storage media longevity testing (Co-convenors: Kei Yamashita and .Peter Adelstein)

*ISO/TC 171/SC 1 was joined later.

2009

2010

The 15th SC 23 plenary meeting was held in Winterthur, Switzerland, 2010-12-03.  Mr. Kei Yamashita was endorsed as the new Chairman for appointment by JTC 1 in 2011.  It is decided to contact Blu-ray disc association.  The work items for Amendments to ISO 1001: 1986 (File structure and labeling of magnetic tapes) and ISO 9660: 1988 (Volume and file structure of CD-ROM) were initiated for conforming to the widely used specification of volume and file structure of Magnetic Tape and de fact specification of volume and file structure of CD-ROM respectively.

2011

Mr. Osamu Kunisaki replaced Mr. Kei Yamashtia as the WG 6 Convenor.

2012

The 16th plenary meeting was held in Lisbon, Portugal.  The scope was modified to add “flash memory technologies”.  The modified scope is:

Standardization in the field of removable digital storage media utilizing optical, holographic and magnetic recording technologies, and flash memory technologies for digital information interchange, including:

– algorithms for the lossless compression of data

– volume and file structure

– methods for determining the life expectancy of digital storage media

– methods for error monitoring of digital storage media”.

  • Publication of the 2nds edition of ISO/IEC 1001 (File structure and labeling of magnetic tapes)

2013

Dr. Peter Adelstein as Co-convenor of JWG 1 was replaced by Mr. Mark Worthington.

2014

The 17th plenary meeting was held in Estes Park, Co., USA.  Mr. Kei Yamashita was re-appointed as the Chairman at the JTC 1 Plenary held in Abu Dhabi.  Joint Working Group (JWG) with ISO/TC 42 and ISO/TC 171 was terminated. WG 6 on iVDR Cartridge was terminated.

2015

  • Publication of ISO/IEC 30191 (Ed.2), BD writable disk 120 mm Triple Layer (100,0 Gbytes single sided disk and 200,0 Gbytes double sided disk) and Quadruple Layer
  • Publication of ISO/IEC 16963 (Ed.2), Test method for the estimation of lifetime of optical disks for long-term data storage

2016

  • Publication of ISO/IEC 30190 (Ed.2), Digitally recorded media for information interchange and storage — 120 mm Single Layer (25,0 Gbytes per disk) and Dual Layer (50,0 Gbytes per disk) BD Recordable disk
  • Publication of ISO/IEC 30192 (Ed.2), Digitally recorded media for information interchange and storage — 120 mm Triple Layer (100,0 Gbytes per disk) BD Rewritable disk
  • Publication of ISO/IEC 30193 (Ed.2), Digitally recorded media for information interchange and storage — 120 mm Single Layer (25,0 Gbytes per disk) and Dual Layer (50,0 Gbytes per disk) BD Rewritable disk

The 18th plenary meeting was held in Seoul, Korea, 2016-07-22.

Annex

A: Chairman

Dr. Junichi Shimada (1985 – 1993)
Dr. Yoshinobu Mitsuhashi (1993 – 1998)
Dr. Tomoyuki Toshima, JP (1998 – 2005)
Dr. Yoshinobu Mitsuhashi, JP (2005 – 2011)
Mr. Kei Yamashita, JP (2011 – )

B: Secretary

Mr. Takeo Misao, JSA (1985 – 1990)
Ms. Jaqueline Miyagaya, ITSCJ (1990 – 1993)
Ms. Toshiko Kimura, ITSCJ (1993 – 2006)
Ms. Ayuko Nagasawa, ITSCJ (2006 – 2010)
Ms. Toshiko Kimura, ITSCJ (2010 –  )

C: Working Groups

Title Convenor
WG 1

(Disbanded)

Permanent Editing Committee Mr. Dara Hekimi, CH (1988 – 1991)

Mr. Jan van Den Beld, CH (1991 – 1999)

WG 2

(Disbanded)

Development of Draft Standards for ODCs Mr. Mike Deese, US (1988 – 1999)
WG 3

(Disbanded)

300 mm WORM ODCs Mr. R. Malissin, FR (1988 – 1996)
WG 4

(Disbanded)

130 mm WORM ODCs Dr. D. Visser, NE (1988 – 1991)
WG 5

(Disbanded)

356mm WORM ODCS Mr. R. Dreessen, US (1990 – 1996)
WG 6

(Disbanded)

Development of standards for iVDR cartridge Mr. Kei Yamashita, JP (2008 – 2011)

Mr. Osamu Kunisaki, JP (2011 – 2014)

WG 7 (JWG 1)

(Disbanded)

JWG with ISO/TC 42 and ISO/TC 171/SC 1 for Development of optical storage media longevity testing Mr. Kei Yamashita, JP (2008 – 2014)

Dr. Peter Adelstein, US (2008 – 2013)

Mr. Mark Worthington, US (2013 – 2014)

D: Meetings

D.1 Plenary:

  Date Place Agenda Resolutions Report
#18 2016-07-22 Seoul, Korea SC23N1934 SC23N1973
#17 2014-09-10 Estes Park, CO, USA SC23N1852 SC23N1878,
1885
SC23N1883
#16 2012-06-26 Lisbon, Portugal SC23N1757 SC23N1758 SC23N1768
#15 2010-12-03 Winterthur, Switzerland SC23N1673 SC23N1676 SC23N1677
#14 2008-12-16/17 Jeju, Korea SC23N1576 SC23N1578 SC23N1592
#13 2007-09-20 Montreux, Switzerland SC23N1477 SC23N1479 SC23N1486
Ad hoc on
WD29121
2007-09-20 Montreux, Switzerland SC23N1478 SC23N1487
#12 2005-12-01 Kyoto, Japan SC23N1378 SC23N1381 SC23N1392
DIS 17341/
DIS 17342 BRM
2003-09-23 Cambridge, UK SC23N1267 SC23N1276
#11 2001-10-10 Lugano, Switzerland SC23N1213 SC23N1218 SC23N1219
#10 1999-10-29 Beijing, China SC23N1146 SC23N1155
DIS 9660 BRM 1999-10-28 Beijing, China SC23N1149 SC23N1151
#09 1997-10-16/17 Washington DC,USA SC23N1043 SC23N1047 SC23N1062
#08 1996-10-24/25 Berlin, Germany SC23N0887 SC23N0943 SC23N0949
#07 1995-10-26/27 Seoul, Republic of Korea SC23N0765 SC23N0831 SC23N0837
#06 1994-11-03/04 Geneva, Switzerland SC23N0654 SC23N0715 SC23N0724
#05 1993-04-22/23 Eindhoven, Netherlands SC23N0540 SC23N0551 SC23N0566
#04 1991-09-12/13 Sofia, Bulgaria SC23N0411 SC23N0434 SC23N0435
#03 1990-10-22/24 Washington , USA SC23N0338 SC23N0351 SC23N0355
#02 1989-10-25/27 Tokyo, Japan SC23N0280 SC23N0294 SC23N0295
#01 1988-11-29/12-01 Maastricht, Netherlands SC23N0223 SC23N0244 SC23N0247

D.2 Joint Working Group 1 (WG 7) (with ISO/TC 171/SC 1 and ISO/TC 42) – Disbanded: 2014

  Date Place Agenda Resolutions Report
#09 2014-09-09 Estes Park, CO, USA SC23N1853 SC23N1876 SC23N1882
#08 2014-02-05 Montreux, Switzerland SC23N1843 SC23N1844 SC23N1849
#07 2013-09-25 Tokyo, Japan SC23N1822 SC23N1832 SC23N1835
#06 2013-05-16 Salt Lake City, UT, USA SC23N1807 SC23N1819 SC23N1820
#05 2012-12-13 Sapporo, Japan SC23N1780 SC23N1793 SC23N1794
#04 2010-09-21 Morges, Switzerland SC23N1647 SC23N1648 SC23N1659
#03 2010-06-18 Tokyo, Japan SC23N1640 SC23N1642 SC23N1643
#02 2010-02-24/25 Los Angeles, CA, USA SC23N1632 SC23N1638 SC23N1639
#01 2009-10-09 Tokyo, Japan SC23N1617 SC23N1625

D.3. Working Group 1 (Permanent Editing Committee) – Disbanded: 1999

  Date Place Agenda Resolutions Report
#07 1999-02-22 Geneva, Switzerland SC23N1109 SC23N1117
#06 1997-10-15 Washington DC., USA SC23N1016
#05 1996-10-21/22 Berlin, Germany SC23N0896

D.4 Working Group 2 (Development of Draft Standards for ODCs) – Disbanded: 1999

No.  Date Place Agenda Resolutions Report
#32 1997-10-13/14 Washington DC, USA SC23N1029 SC23N1042
#31 1997-06-24/25 London, UK SC23N1001 SC23N1008 SC23N1009
#30 1997-01-28/29 St-Gervais, France SC23N0960 SC23N0977 SC23N0978
#29 1996-10-22/23 Berlin, Germany SC23N0942 SC23N0948 SC23N0959
#28 1996-06-26/28 Nice, France SC23N0889 SC23N0894 SC23N0895
#27 1996-04-24/26 Kyoto, Japan SC23N0865 SC23N0882 SC23N0883
#26 1996-01-24/26 San Jose, USA SC23N0855 SC23N0859 SC23N0860
#25 1995-10-23/25 Seoul, Republic of Korea SC23N0866 SC23N0832 SC23N0836
#24 1995-07-25/28 Sapporo, Japan SC23N0770 SC23N0773 SC23N0801
ISI 1995-06-05 Princeton, NJ, USA
#23 1995-04-24/27 Paris, France SC23N0748 SC23N0756 SC23N0774
#22 1995-01-25/27 Tucson, Arizona, USA SC23N0728 SC23N0741 SC23N0740
#21 1994-11-01/02 Geneva, Switzerland SC23N0684 SC23N0711 SC23N0687
#20 1994-07-19/24 Beijing /Yangtze, China SC23N0664 SC23N0672 SC23N0687
#19 1994-04-19/22 Herndon, Virginia, USA SC23N0633 SC23N0641 SC23N0651
#18 1994-01-19/21 London, UK SC23N0605 SC23N0614 SC23N0619
#17 1993-10-06/08 Okinawa, Japan SC23N0580 SC23N0588 SC23N0589
APPI 1993-10-05 Okinawa, Japan SC23N0581 SC23N0587
#16 1993-07-13/15 Hawaii, USA SC23N0567 SC23N0575
#15 1993-04-20/21 Eindhoven, Netherlands SC23N0523 SC23N0564
#14 1993-01-26/28 Tucson, Arizona, USA SC23N0503 SC23N0508
#13 1992-10-20/22 Sapporo, Japan SC23N0476 SC23N0496
#12 1992-07-21/23 Eindhoven, Netherlands SC23N0459 SC23N0472 SC23N0477
#08 1992- SC23N0375
#07 1991-01-22/24 Hawaii, USA SC23N0352 SC23N0374 SC23N0374
#06 1990-10-22/23 Vienna, Virginia, USA SC23N0345
FTSG 1990-10-20 Vienna, Virginia, USA SC23N0362
#05 1990-07-28/29 Geneva, Switzerland SC23N318
#04 1990-04-18/20 Kyoto, Japan SC23N0306 SC23N0307

D.5 Working Group 3 (300 mm WORM ODCs) – Disbanded: 1991

To be prepared.

D.6 Working Group 4 (130 mm WORM ODCs) – Disbanded: 1991

To be prepared.

D.7 Working Group 5 (356mm WORM ODCS) – Disbanded: 1996

To be prepared.

D.8 Working Group 6 (Development of standards for iVDR cartridge) – Disbanded:2014

To be prepared.

F: Standards and projects under the responsibility of JTC 1/SC 23:

http://www.iso.org/iso/home/store/catalogue_tc/catalogue_tc_browse.htm?commid=45240

  • Optical Media
  • Reliability
  • Volume and file structure
  • Magnetic media
  • Flexible magnetic media (former SC 11)
Advertisements