Archived posting to the Leica Users Group, 2010/06/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]CD/DVD life cycle is extrapolated based on accelerated aging tests. Actual life cycle will not be know for another 80 years or so, as someone else mentioned. Higher data density implies poorer durability, in general. The example of the digital Doomsday Book is I think instructive. http://news.bbc.co.uk/2/hi/technology/2534391.stm Archivists need to be conservative with technology. I think there is at least one amongst our midst. Analog media like film and paper are boring but is known to last at least 50-70 years and can be viewed with the human eye without much, if any, technology. Regards, Spencer On Jun 10, 2010, at 22:06, Lawrence Zeitlin wrote: > I just saw a program of the cable History channel which detailed the > document storage procedures of the U.S. Library of Congress. The program > said that images, specifically movies and stills, are stored on film for > archival purposes even when created digitally. What on earth for? I thought > properly prepared and stored CDs and DVDs could last 100 years. Given the > loss in quality converting from digital to analog and back again, what is > the benefit of analog storage?