RE: DVD defects

Cartford@jcl.lib.ks.us
Wed, 13 Feb 2002 14:34:10 -0800 (PST)

I shoulda mentioned: these are all single-sided DVDs we're having problems
with.

PC

Peter Cartford
AV Librarian
Johnson County Library
9875 W. 87th St.
Overland Park, KS 66212
913-495-2496
cartford@jcl.lib.ks.us

-----Original Message-----
From: Mary Dexter [mailto:mdexter@ald.lib.co.us]
Sent: Wednesday, February 13, 2002 3:47 PM
To: Multiple recipients of list
Subject: Re: DVD defects

Peter, are these possibly double-sided DVDs you are having problems with? We
decided not to go with the 3M overlays on DVD just for that reason. Though
the
3M seems to work fine on music CDs and balance doesn't seem to be a problem
there. Just a thought. ~ Mary

Mary Dexter
Arapahoe Library District

Cartford@jcl.lib.ks.us wrote:

> Hi all,
>
> I'm wondering what experience other libraries are having with defective
> DVDs. We're having quite a few show up here that patrons report as
> unplayable. They have no visible physical damage, but either won't load
or
> play for a while and then the picture breaks up. We're using 3M overlays
> for security. Possible causes we've come up with: manufacturing defects,
> disc/player incompatibility, playback interference from security strips on
> 3M overlays, instability caused by the 3M overlays. Comments on possible
> causes: If manufacturing defects were as widespread as our problem seems
to
> indicate, we'd have heard about it by now (wouldn't we?); it doesn't seem
at
> all likely that DVDs would play on some machines but not on others; 3M
> swears up and down that security strips shouldn't interfere with playback;
> the overlays are so lightweight it doesn't seem likely they'd cause an
> imbalance. So we're kinda stumped. Is anyone else having a similar
> experience, and if so do you have a surefire explanation for it?
>
> Thanks in advance for all replies,]
>
> Peter
>
> Peter Cartford
> AV Librarian
> Johnson County Library
> 9875 W. 87th St.
> Overland Park, KS 66212
> 913-495-2496
> cartford@jcl.lib.ks.us