Reading the specs of the Plextor drives at the posted link, I noticed that the error rate is not that low: Error Rate Mode 1: 1 block/10^12 bits Mode 2: 1 block/10^9 bits DVD-ROM: 1 block/10^12 bits I am not completely sure what they mean by '1 block' in this case, I assume it is an error in one bit (?). So, this means that in the Mode 2, if you record a CD (~700MB~5600Mbits~5.6x10^9 bits), you may have on average 5-6 errors. Of course, there is an error correction built in, but nevertheless this is significant. With Mode 1 - you'd have only 1 error in ~180 CDs, and with a DVD - 1 error per ~30 full 4 GB (single layer) DVD disks. Ghm.. This juststifies doing "verify" for each disk recorded for archival storage.
Igor PS. A funny sentence from this page: http://www.plextor.com/english/products/716uf.htm (2nd paragraph) "..., the drive also supports dual-layer DVD media, enabling users to burn up to four hours of high-quality." ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
