HI Susan, Ari, et al,
This may be a little out of date (2004), I seem to remember this issue being raised before: Journal of Research of the National Institute of Standards and Technology 517 [J. Res. Natl. Inst. Stand. Technol. 109, 517-524 (2004)] Stability Comparison of Recordable Optical Discs?A Study of Error Rates in Harsh Conditions Search google for: Longevity of Recordable Discs It was the second result -- - Ray Ray Shah - think design, inc. Web, application design, usability, training. rayshah at thinkdesign.com tel: 212.922.0952 x 212 http://www.thinkdesign.com mobile: 917.476.0952 On Feb 12, 2007, at 10:18 AM, Ari Davidow wrote: > There is _no_ assured lifetime for optical media (DVD, CD). There > are claims > that "archival quality" media last for 100 years. There is also > experiential > evidence that this is not so. Optical media may fail > catastrophically at any > time (although the odds are that a given platter will last for many > years). > If you use optical media for archival purposes, you need to be created > multiple copies, and also need a fairly rigorous program to test > each copy > regularly (at least once a year) to look for degradation. > > Faced with this headache, we have opted for live RAID storage, with > additional off-site live storage--we are currently looking at > Amazon's S3, > as well as at a newer service, carbonite.com. Ultimately, we hope > to work > with a few geographically-distributed partners to back up each > other's work, > but don't yet feel that we have the experience or knowledge to be > confident > that we're ready to do that. > > ari > > On 2/12/07, Susan Fishman-Armstrong <sfishman at westga.edu> wrote: >> >> A couple of conservation questions: >> >> Our laboratory director came to me last week. He is starting to >> digitize >> his old maps on DVDs. >> >> He ran across some information that said that the lifetime of DVDs >> is only >> 5 >> years. Is that true? >> If so, what is the estimated lifespan of the gold plated DVDs? >> Finally, is the lifespan of DVDs shorter than CDs? >> >> Thanks, >> >> Susan >> >> +++++++++++++++++++++++++++++ >> Susan Fishman-Armstrong >> Laboratory Coordinator >> Antonio J. Waring, Jr. Archaeological Laboratory >> University of West Georgia >> Carrollton, GA 30118 >> >> 678-839-6303 (office) >> 678-839-6306 (fax) >> www.westga.edu/~ajwlab/ >> >> >> -----Original Message----- >> From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On >> Behalf Of >> Amalyah Keshet >> Sent: Sunday, February 11, 2007 3:05 AM >> To: mcn-l at mcn.edu >> Subject: [MCN-L] IP SIG: Copyright at the Whitney: the >> Oldenburg-PicassoExhibit >> >> Interesting post at : >> http://wendy.seltzer.org/blog/ >> >> "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes >> without >> saying that I can't go anywhere without seeing copyright issues >> lurking in >> the background. The last room of the Whitney's "Picasso and >> American Art," >> however, forced them to the foreground..." >> >> >> >> >> >> >> >> Amalyah Keshet >> Head of Image Resources & Copyright Management >> The Israel Museum, Jerusalem akeshet at imj.org.il >> Chair, MCN IP SIG www.mcn.edu >> Blog www.musematic.net >> >> _______________________________________________ >> You are currently subscribed to mcn-l, the listserv of the Museum >> Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> >> >> _______________________________________________ >> You are currently subscribed to mcn-l, the listserv of the Museum >> Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> > _______________________________________________ > You are currently subscribed to mcn-l, the listserv of the Museum > Computer Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > >
