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[OM] Re: CD, DVD lives, July 2005

Subject: [OM] Re: CD, DVD lives, July 2005
From: Wayne Harridge <wayneharridge@xxxxxxxxxxxxxxx>
Date: Mon, 06 Feb 2006 16:42:51 +1100




> Moose <olymoose@xxxxxxxxxxxxxxx> wrote:
> 
> What say, Mr. Physicist?
> 

Hard disks ?  I don't think I've heard any claims about how archival they are, 
there are certainly many points of potential failure, electronic, mechanical, 
magnetic.  I think the main advantage of hard disks is that they tend to be 
upgraded to newer technology at fairly regular intervals so the data is 
refreshed.

My main problem is a claim of a 300 year lifetime for a CD based on 
"accelerated ageing tests", it's just impossible to believe that all factors 
involved in the degradation of the media have been accounted for and in the 
correct way.

...Wayne

Wayne Harridge

http://lrh.structuregraphs.com

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