Mike
I'd be interested to know if anyone else has seen this witubthe TDK
<Tyvek> window sleeves..
25/2/03 6:09 am Mike Sheil <triffid-at-macunlimited.net> wrote
>In August 2001 I completed a major scan of my portfolio material and
>saved the unadjusted files on CDs. These CDs were then individually
>placed in paper "slip-sleeves" supplied by a reputable manufacturer -
>TDK.
are the sleeves actually Tyvek material?
are the CD's plain silver both sides?
I have hundreds of those Tyvek sleeves and have found that the plain
silver CD's which I favour [better for labels] are sticking to the
plastic window in the front. This seems to cause an internal
delamination of the CD material!
Of course TDK won't want to know, since their own CD's are apparently
fine in the packets [but who knowes long term if the plastic window
material contains something which eventually softens all CD's?.
Welll, fine for life, so far. I do have a batch of 8 x TDK CD's which
will not work on my 48 x writer.
>
>Since then the CDs have been stored in a cool, dry place and were I
>assumed, a reliable archive of my material.
>
>WRONG. All the Cds are now unreadable. Examination shows there has
>been an interaction between the sleeve and the surface of the CD which
>now looks as if its has a bad attack of moire pattern! Furthermore I
>have found similiar "staining" on CDs stored as recently as Aug 2002
yep
me too
sticking to the plastic window sems to have caused it here.
>
>Clearly the only way to store CDs are in a jewel case where no contact
>is made between the surface of the CD and any possible contaminents in
>paper sleeves etc.
>
>Obviously there are other factors which could affect the CD - humidity
>at time of creation etc - but it is clear that with so much at stake
>over long term storage one should reduce all possible risks.
>
>I have failed to do so and paid the price - so do not use slip sleeves
>for CD storage.
I wonder if that's it. And I wonder about those <arhcival> slip
sleeves. Bit less space consuming.
Regards, NeilB
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