[ale] is USB stick safer than CD-ROM/DVD

Greg Freemyer greg.freemyer at gmail.com
Tue Apr 29 00:02:49 EDT 2008


If you guys are really serious about long term storage on DVD then you
should investigate "archival DVDs".  I'm not sure they exist, but
Kodak used to sell archival CDs.

They used gold as the reflective surface.  iirc, at least with CDs the
issue is that the top and bottom layer eventually separate and air is
allowed into the mirror surface.  Eventually it oxidates and looses
its reflectivity.  By using gold, you have no oxidation effect.

Kodak used to claim they were good for 50 years (iirc).

Greg

On Mon, Apr 28, 2008 at 8:56 PM, Bob Toxen <transam at verysecurelinux.com> wrote:
> On Fri, Apr 25, 2008 at 11:14:45PM -0400, jtholmes wrote:
>  > We have so many pictures on DVD that it takes about
>  > 4 DVD's to hold them all and it keeps growing.
>
>  That dvdisaster site claims that data on DVDs first fails near the outer
>  rim.  Inspecting my backup DVDs indicates that they are burned from the
>  innermost ring first.
>
>  Thus, if one simply does not use more than 90-95% of the DVD capacity
>  there will be no data near the outer rim and thus no data loss for a
>  longer period of time.
>
>  Thoughts?
>
>  Bob
>
>
> _______________________________________________
>  Ale mailing list
>  Ale at ale.org
>  http://mail.ale.org/mailman/listinfo/ale
>



-- 
Greg Freemyer
Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
First 99 Days Litigation White Paper -
http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf

The Norcross Group
The Intersection of Evidence & Technology
http://www.norcrossgroup.com


More information about the Ale mailing list