In a message dated 06-03-15, Sean Dennis said to Holger Granholm:   
      
   GM Sean,   
      
   HG> No they don't.  Just like music cassettes the magnetic information   
   HG> migrates between the rolled up tape layers.   
      
   SD> If you're using digital quality tapes, not the old analog ones,   
      
   Well, I used the the "old" analog tapes so that's where my experience   
   came from.   
      
   SD> The average life of a CD/DVD is two to five years.   
      
   SD> See:   
   SD> http://www.archives.gov/records-mgmt/initiatives/temp-opmedia-faq.html   
      
   Yeah, I've seen test (comparisons) reports of different manufacturers   
   products.   
      
   SD> However, nitpicking aside, any good backup is better than no backup   
   SD> at all, no matter what medium you use to back it up with!   
      
   I agree, even the old analog tapes fulfilled their mission for short   
   term backups.   
      
      
   73 de Sam, OH0NC   
      
   aka Holger   
      
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