On Fri, Aug 05, 2005 at 03:11:02PM +0000, duffmckagan wrote: > On 8/5/05, Peter Farrow <peter at farrows.org> wrote: > > MO = "Magneto Optical" > > http://www.usbyte.com/common/MOsystems.htm > > > > > Okay. Thanks. Hmm - MO needs a magnetic read head... I guess the technology you guys mean is PD as the base for DVD-+RW... Phase Change media (no matter what kind) do have a high error rate... MO media do not. The biggest customer for those is the US government... it is common for a MO disk to have a 40+ year warrenty. Peter.