MFDigital CD DVD Information Library
Monday, November 17, 2008
New ISO standard Gives Recommendations For Care of Optical Discs
A new International Standard establishes general principles and gives recommendations for the care and handling of optical disks during use with a view to maximizing their effective life.
ISO 18938:2008 establishes general principles for the care and handling of digital optical discs during use. It addresses the issues of physical integrity of the medium necessary to preserve access to the recorded data (information).
It applies to the families of compact disc (CD), digital versatile disc (DVD), high definition digital versatile disc (HD DVD), Blu-ray disc (BD), and any hybrids of these families, as well as each type of disc within a family, e.g. injection moulded [read-only memory (ROM)], dye-layer [recordable (R)] and phase change [rewriteable (RW), random access memory (RAM)] technologies.
As with other media there are concerns about the life expectancy of recorded information on optical discs which, like paper records, photographic film and magnetic tape, can be subject to both damage and decay.
ISO 18938:2008 addresses the issues of physical integrity of the medium necessary to preserve access to the recorded data. These include use and handling environments, including pollutants, temperature and humidity and light exposure, contamination concerns inspection, cleaning and maintenance, including cleaning methods and frequency, transportation disasters, including water, fire, construction and post-disaster procedures as well as staff training.
The effective life of optical disks can also be increased or decreased significantly depending upon the conditions under which they are stored.