I found this interesting:
Tim Clatterbuck, Verbatim Optical Storage Manager, emphasized that when it comes to archiving valuable data, users need both longevity and broad playback compatibility. "Archival-grade DVD media that only uses gold for the reflective layer provides a longer disc life, but it also has lower reflectivity and different read/write characteristics than standard silver DVD-Rs. This can cause drive compatibility issues," he noted. "By adding the Dual Reflective Layer, Verbatim archival-grade DVD-R media will look like the traditional discs to DVD drives and recorders and can attain the same drive read/write compatibility."
To overcome compatibility issues, the first layer of Verbatim's new Dual Reflective Layer is highly reflective and this, when combined with the Metal AZO dye recording layer, provides excellent read/write performance. As a result, DVD recordable drives can apply optimized recording conditions without requiring any firmware upgrades. The second reflective layer prevents oxygen from coming through the DVD bonding material. Oxidation, one of the primary causes of degradation, limits the lifetime of DVD media.
And yes Dolph.. I'll try to get you some of these.