On Thu, 2005-07-28 at 22:45 -0400, Peter Arremann wrote: > On Thursday 28 July 2005 22:11, Paul wrote: > > On Thu, 2005-07-28 at 08:44 -0500, Bryan J. Smith wrote: > > > On Thu, 2005-07-28 at 08:44 -0400, Peter Arremann wrote: > > > > *sighs* BS level exceeded... > > > > > > DVD-RAM is the most reliable, long-term optical archiving format. > > > > Well other than the name, it does not have anything in common with DVD > > because IIRC it's a Magneto Optical drive ... totally different Tech. > Close - its PD, not MO... PD means that the intensity of the laser is varied > to change the phase and therefore the way the laser is reflected. Reading and > writing is both done with the laster. OK same tech as the Panasonic PD drives that stored 650MB/side ... of course I'm starting to wonder about my memory now. Either way you can't stick them in a normal DVD drive and read them. Paul > > MO means a laser is heating up the magnetic materical enough so the write head > can change the magnetic domains. Once the material cools down again enough, > the orientation of the domains can no longer be changed. > > Peter. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >