David Brodbeck wrote:
> Stevens wrote:
>   
>> Auto manufacturers try to predict how their interiors and their paints will 
>> last, too, but until both are subjected to the Texas sun they are only 
>> guessing. The North has salt that kills cars; in the South it is the sun. 
>> Only when they obtain empirical data can they be sure and that data takes 
>> a long time to gather. The same goes for optical media manufacturers. Any 
>> longevity rating is a SWAG, at best, which is the reason for my cynical 
>> view.
>>   
>>     
>
> Sure.  As anyone who's ever had a couple of hard disks fail can attest,
> MTBF numbers are mostly fiction.
>   
MTBF is essentially an average time, which means some will fail sooner
and others later.  It does not mean you'll never get a bad drive that
fails much earlier than expected.

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