Marti, we use a full overlay, however not the type that is for security. We use them to prevent scratches on the art layer which could effect playback. They are handy for that, they also help stiffen the DVD up making it less likely they will break when coming off the spindle. I can not address their success or failure as a security device as we do not have the kind with the metal strips, but after 7 years of use, they do hold up well. The key is application. Once they go on, they really want to stay. Having a procedure in place is a good way to make sure you avoid problems with mis-application. I have applied every single overlay, but that was over several years, I would not want to do 1600 in a short time span.
Hope this helps regards jhs John H. Streepy Media Services Supervisor Library-Media Circulation James E. Brooks Library Central Washington University 400 East University Way Ellensburg, WA 98926-7548 (509) 963-2861 http://www.lib.cwu.edu/media "Hand to hand combat just goes with the territory. All part of being a librarian" -- James Turner "Rex Libris" Transitus profusum est nocens! >>> "Morec, Marti" <m...@ci.berkeley.ca.us> 8/10/2010 9:51 AM >>> Hello! We are investigating new circulation and security systems for Berkeley Public. (High circ, large collection dvds and cds) One option for the dvds and cds is the full overlay. That is, it covers the whole disc. There are two types, a “Sting Ray” or an “X-Range.” All vendors appear to use either one. My questions*Do any of your libraries use these? Are they effective? Are there problems? We formerly used the “donuts” on the discs, and they were not that great. Got stuck in some players, bubbled up, etc. We are curious about this new technology. . Any thoughts? Marti Morec Collection Development Librarian Berkeley Public Library 510-981-6139 m...@ci.berkeley.ca.us
VIDEOLIB is intended to encourage the broad and lively discussion of issues relating to the selection, evaluation, acquisition,bibliographic control, preservation, and use of current and evolving video formats in libraries and related institutions. It is hoped that the list will serve as an effective working tool for video librarians, as well as a channel of communication between libraries,educational institutions, and video producers and distributors.