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Possibly of interest - DVD-R longevity: On Mar 24, 2006, at 5:10 AM, Parker Dinkins wrote: > Of the approximately 600 pieces of optical media that were below the > water > line in our building during the Katrina flood, only 4 were DVD-R > media. None > of those pieces survived. > > On the other hand, most of the other manufactured DVDs and CDs and > gold CDRs > did survive. The exceptions were mostly manufactured DVDs and CDs > whose top > layer dissolved or came off, allowing water penetration. In some > cases, the > reflective layer of some manufactured audio CDs have pit holes, where > the > reflective layer was dissolved, but still are playable. > > Furthermore, there seemed to be more failures in multi-disc music > collections than single releases. > > This is not a scientific study by any means, but I would not want DVD-R > media for unmanaged long term storage. > > --- > Parker Dinkins > MasterDigital Corporation > CD Mastering + Audio Restoration > http://masterdigital.com > > > on 3/24/06 6:16 AM US/Central, Steven Smolian at [log in to unmask] > wrote: > >> This report suggests the use of DVDs, recorded at 24/96, be >> considered as a >> standard on which preservation work would be stored. >> >> We know from last year's (?) NIST report on optical media longevity >> that the >> only medium truly capable of long-term, reliable storage is a CD with >> a gold >> reflective layer. Unless it slipped past my radar, there is no such >> recordable DVD at present. Using a DVD for long-term stoage appears >> as much >> of a gamble as using anything but gold for similarly intended CD >> storage. >> >> It follows that archivally-intended projects for which the final >> storage >> medium is the DVD should also be preserved at 44.1/16 on gold CDs >> until there >> is a gold DVD on the market.