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Posted by Noik on 05/30/07 06:40
On Mon, 28 May 2007 12:50:52 -0500, Allen <allen@nothere.net> wrote:
>Oh, well, I guess I should throw away all the CDs I've put labels on for
>the past six plus years, even if every one of them still plays without
>any problem. However, I have ruined _unlabeled_ CD-Rs by accidentally
>scratching the surface that would have been protected by a label. C'est
>la vie.
It has been widely reported that labels can ruin burned CDs, and I
can add personal experience making those reports even wider. 3+ years
ago my brother used labels on some burned CD Audio disks. They all
shit the bed recently. Well, some were worse than others, and some
hadn't showed symptoms yet, but the error rates were through the roof,
it was just a matter of time. I know that his burner/media combination
yielded excellent burn quality, and I know that unlabeled disks
exposed to the exact same conditions are still in excellent shape.
There's absolutely *no* doubt in my mind that the labels killed those
disks.
It's said that something in the adhesive eats through the protective
layer and attacks the underlying data structure. But I'd think that
things would stabilize after a year or two. These disks were well
used, I was thinking maybe the forces on the label from the high
rotation speeds might cause purely mechanical degradation. Especially
since my brother kinda thought that maybe the most used disks showed
the most problems. Then again, I've read accounts of little used disks
that were labeled going bad, while disks stored uoder the exact same
conditions were fine. I think the bit about the adhesive rotting
things must be what is really going on; some label adhesives will rot
your disks, others won't. I've never heard about any standard for a
safe adhesive, so I think putting on labels is a total crapshoot.
Labels shouldn't be a problem for DVDs unless the sucker comes off
and causes damage to drive, etc. The data is in the middle of a DVD,
so if a label gets grungy/whatever it should be possible to find a
solvent that will safely remove the label and clean things up.
--
N
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