International Organization for Standardization

Information technology - Digitally recorded media for information interchange and storage - Test method for the estimation of lifetime of optical disks for long-term data storage - Second Edition
 N ISO/IEC 16963

Annotation

This International Standard specifies an accelerated aging test method for estimating the lifetime of the retrievability of information stored on recordable or rewritable optical disks.

The method is based on the theoretical assumption that the lifetime of data recorded on an optical disk has a lognormal distribution.

Detailed testing is specified for the following formats: DVD-R/RW/RAM disks, +R/+RW disks, CD-R/RW disks and BD recordable / rewritable disks. The testing can be applied to additional optical-disk formats with substitution of the appropriate specifications and can also be updated by committee in the future as required. This International Standard includes:

— stress conditions

— Basic and Rigorous stress-conditions for testing and subsequent analysis using both the Eyring and Arrhenius methods;

— ambient storage conditions in which the lifetime of data stored on optical disk is estimated

— a Controlled storage-condition, 25 °C and 50 % RH, representing full-time air conditioning. The Eyring method is used to estimate the lifetime under this storage condition;

— a Harsh storage-condition, 30 °C and 80 % RH, representing the most severe conditions in which users handle and store optical disks. The Arrhenius method is used to estimate the lifetime under this storage condition;

— a description of the evaluation system;