All DVD discs are two discs bonded together with an adhesive to form a single disc, whether they are single-sided, double-sided, single-sided dual layer, etc. Delamination, as being discussed in this thread, refers to failure of the adhesive that binds the two disc halves together. Joe Mike Richter <[log in to unmask] > To Sent by: [log in to unmask] Association for cc Recorded Sound Discussion List Subject <[log in to unmask] Re: [ARSCLIST] Testing DVDs > 03/06/2005 10:34 AM Please respond to Association for Recorded Sound Discussion List <[log in to unmask] > At 09:16 AM 6/3/2005 -0400, [log in to unmask] wrote: >Can anyone confirm that glue failure is actually a problem and DVDs are >delaminating all over the place. I have subjected 15 brands of DVD-R discs, >7 brands of DVD-RW discs, and about 75 DVD movie discs to accelerated aging >conditions. The total amount of discs tested was close to 200. Not one disc >delaminated. Delamination should not be a problem on single-sided DVDs and I doubt that there is serious consideration of two-sided blanks for archiving (even DVD-RAM). Perhaps another term is intended here, but I am not aware of "lamination" in production of single-sided recordable DVDs. Mike -- [log in to unmask] http://www.mrichter.com/