Archival storage

John Foust jfoust at threedee.com
Tue Oct 11 19:17:43 CDT 2005


At 05:55 PM 10/11/2005, Patrick Finnegan wrote:
>At 700MB/cd, it'd be about 12 reams per CD, not 92.  92 reams would get 
>you about 5.4GB, which is more than a (single-sided, single layer) 
>DVD-R holds.

My math:

472,500 bits per page 
945,000 bits per double-sided page 
118,125 bytes per double-sided page 
681,574,400 bytes per 650 M CD 
5,452,595,200 bits per CD 
46,160 pages 
92 reams 
59,062,500 bytes per ream 

- John



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