archival cd-r - really true?

[Jules Richardson]

John Foust wrote:
> At 03:22 PM 3/15/2006, Chuck Guzis wrote:
>> Securing something in a 4-hour safe on-site will rarely protect
>> any computer storage media for very long if a fire breaks out.
> 
> To put it another way, the average office safe is rated as to
> how long it will keep paper from combusting, not for how
> long before a CD-R or DVD won't survive...

That got me curious as to how long a hard disk would survive (well, at least 
the data surfaces such that the data could be recovered) in a fire safe - 
anyone know?

I've never tried heating a disk platter to see what happens...

cheers

Jules