On Monday 19 February 2007 10:32:57 am Greg Freemyer wrote:
On 2/17/07, Dennis J. Tuchler <dennis.tuchler@earthlink.net> wrote:
I have seen advice on listservs not to back up to a CD ROM. I never understood why. Why is it a bad idea to use CDROMS as storage media?
AIUI, it relates to designed life of the media. For most CDs/DVDs it is pretty short (a year or two I think. And the glue from the back of the label will eat away your data. Don't use them.)
Check these out: http://www.kmpmedia.com/kodak-gold.html
That should be long enough for you (rated 100 to 300 years).
FYI: I was curious about the cost. $122 for 100-pack at http://www.datamediastore.com/kodak-cd-r-29150.html.
Greg
Another longevity issue with CD/DVD media is mold and bacteria. Apparently in humid climates anywhere, there are molds and bacteria that will eat the data layer. Sometimes within weeks. Cool & dry is best for storage. Don't know about the glue eating the data layer. I thought labels and adhesives just took off the reflective layer causing a loss of readability. Data is still there if you can replace the reflective coating... Sanford's Sharpie brand of markers are OK for writing on the media. Stan -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org