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[filmscanners] Re: Archiving???!!!

Hello Brad,

I haven't been archiving on this media personally (I still have
everything on a huge internal HDD), but do have some idea from forums
etc. http://www.luminous-landscape.com/tutorials/hd-back.shtml points
out that putting lables or writing on CD can cause the data to be
lost. There are some other interesting points in the article as well.

I also remember reading another thread where some claimed that
"re-writable" DVDs were more reliable than plain "once-writable"
media. I am not sure if that is true for CD's as well.

Most big banks use "tapes" as backup medium. I am not sure if that is
because they are more reliable, or just cheaper.


On Wed, 08 Dec 2004 09:34:49 -0800, Brad Davis <DocBradd@mac.com> wrote:
> Archiving:
> I've been using CD's for archiving for at least 6 years.  When I started, I
> used an HP burner that worked at 2X.  It still works.  In fact, if a CD
> won't read on another burner or CD drive, it may read on the old HP.  This
> doesn't surprise me, running slower would seem likely to be more robust.
> But, as I try to access older CD's, I consistently find files that I can't
> open - with any CD reader, even the HP.  While CD's written by the HP are
> likely to have fewer bad files, it seems that virtually all of the older
> CD's have some files that are unreadable, or if read, can't be opened by
> photoshop for one reason or another.  It seems that the question isn't if I
> am going to lose files, but how many on a given CD.
> Now, I may be doing things that increase my chances of losing a file, or
> even an entire CD, but I haven't been able to identify what I might be
> doing.  I pretty successfully avoid scratches, and beyond that, I keep the
> CD's in books that have sleeves in them.  They are stored at room
> temperature which is never above 75 degrees, nor below 60 and the humidity
> remains in a range around 40% - not a lot higher or lower.
> I've always purchased the more expensive name brand CD's, even though I am
> somewhat suspicious that on occasion what I got was no better than the no
> name sold by Fry's out here.  In talking to others, I hear the same stories
> irrespective of brand of CD used.
> CD's written by companies (that contain software, such as my Photoshop CD)
> seem to do better, I rarely have any trouble, and on the rare occasion I do,
> putting it in the old HP has always taken care of it.  I've never had to
> request a replacement CD and I don't back them up - I probably should.
> I have been in the habit of making multiple backups, so I haven't lost
> anything of value - yet.
> I've been considering DVD's, but reading about the problems they many have,
> they seem to be an even more fugitive medium.
> Someone must have a solution, must have found way to reduce the losses.  The
> only way I can see to reduce my losses is to write everything on my old HP
> burner and make multiple copies - perhaps 4 copies each.  That seems a bit
> much as it reduces the effective capacity of a CD to about 160 megabytes.
> Suggestions?
> Brad
> --
> Science is built up with facts, as a house is with stones. But a collection
> of facts is no more a science than a heap of stones is a house.
>                                Henri Poincare  --Science and Hypothesis

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