14 Mar
2005
14 Mar
'05
6:59 p.m.
Eric Smith wrote:
Yes. They are laminated with adhesive, just as laser
videodiscs were.
The adhesive leaks O2 even when it's working well, and as it degrades
it leaks worse.
Laser videodiscs have higher mass, so the problems occur faster, but
there's no reason to expect that the same problems won't happen to
DVD media. With laser videodiscs, the problems do start closer to
the outer edge, but they very rapidly (in a few weeks to a month)
progress to affecting the entire disc. I expect that DVDs will
behave similarly, though not quite as quickly. So not using the
edge will gain you a little, but not a lot. Not enough that you
should reduce your concern by any significant amount.
But not writing near the edge will help with finger prints.
Also the surface of some CD's can be easly scraped with a finger
nail. I did that trying to get a CD out of a paper sleeve.
Ben alias woodelf.