Tuesday, November 12, 2013

How Safe Is Digital Media For Long Term Data Storage



Apparently, not so safe. Popular Science Magazine, Dec. 2013 issue, says that odds are low that saving our digital photos on CD’s and hard drives (like backup removable, remote, hard drives) will be safe for the next generation.  The initial thinking was a CD would be good for 100 years, now they are re-thinking it because many fail in 10 years.

Old fashioned paper has done very well by comparison. Early paper (the acid free kind) is still going strong after 100 years.  A typical spinning hard disk drive has a problem I didn’t know about :  If you don’t use it, you lose it. “You’ve got to have it spinning regularly or you are not going to be able to play it”. Says Howard Besser, archivist, NYU.

An even greater problem than the durability of our thumb drives, CD’s, and hard drives, will be the decoding of them sometime in the future, when the software is no longer around that created them. Think Windows 95.  Think Newton. Think CPM.

This is a distressing thought, since I think we all are planning for our children’s photos to last forever in a closet somewhere on a never-used hard drive backup device. Personally, I am trying to convert my VHS tapes of my children to DVD format, and sometimes the tapes will not play.  Or break easily.  And now the wisdom seems to be that the DVD isn’t an eternal format either.  With BlueRay and whatever else follows, DVD players might become like Beta-max video recorders.  I still have one, but wouldn’t know where to buy another if it broke.  I have Beta tapes from 1982.  With valuable things on them. History if you will.  Maybe we should have taken Kodak photos instead ?  But wait, where is Kodak? 

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