Hi Sarah, So far as I am aware they will last rather less long than say cassette tapes. The commercial produced cd's are made by a photographic process--not the "burning" that we do, and so last much longer. Our cd writers "metal" pits into the substrate. I'm sure this accelerates the process of deterioration. Having purchased a tube of 100 cdr's and finding nine out of ten unusealbe has driven me back to "brand name" products. At 02:57 PM 6/5/2003 -0400, you wrote: >Hi Don, > >> system would be what cdr's would be useful for. Be aware folks that cdr's >> are *not* forever. The media can "rot". > >I once investigated that as part of a museum archiving project. At the >time, Kodak was estimating a useful life of 5 yr for their CDs -- but that >was when the technology was new, and they didn't really have a good handle >on the long-term stability of the product. > >As far as you know, is there any more recent estimate of how fast these >things rot? Do you know of any recommended storage precautions for these >things? > >Peace, >Sarah > > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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