ISO and IEC have published ISO/IEC 10995 (ECMA-379), a global standard for optical media suitable for reliable long-term storage of important documents, images and data
Geneva, 21 April 2008
The International Standards Organization (ISO) and International Electrotechnical Commission (IEC) published Standard ISO/IEC 10995 “Information technology -- Digitally recorded media for information interchange and storage -- Test method for the estimation of the archival lifetime of optical media” on 15 April 2008.
ISO/IEC 10995:2008 specifies an accelerated aging test method for estimating the life expectancy for the retrievability of information stored on recordable or rewritable optical disks.
This test includes details on the following formats: DVD-R/-RW/-RAM, +R/+RW. It may be applied to additional optical disk formats with the appropriate specification substitutions and may be updated by committee in the future as required.
ISO/IEC 10995:2008 includes the following:
- stress conditions;
- ambient conditions:
- controlled storage condition, e.g. 25 °C and 50% RH, using Eyring model,
- uncontrolled storage condition, e.g. 30 °C and 80% RH, using Arrhenius model;
- evaluation system description;
- specimen preparation;
- data acquisition procedure;
- data interpretation.
The methodology includes only the effects of temperature (T) and relative humidity (RH). It does not attempt to model degradation due to complex failure mechanism kinetics, nor does it test for exposure to light, corrosive gases, contaminants, handling, and variations in playback subsystems. Disks exposed to these additional sources of stress or higher levels of T and RH are expected to experience shorter usable lifetimes.
The standard will enable the optical storage industry to offer reliable archival-grade optical discs to help end-users select the media life expectancy best suited to their application requirements.
For more information: please contact Dr. Istvan Sebestyen, Secretary General of Ecma International. Email: email@example.com.