On Jan 30, 2004, at 2:43 PM, Erica Sadun wrote: > Region coding is added at a manufacturing facility > for replicated discs. I guess the region option in DVDSP is just a bit set in the DVD master for the duplicators? (Maybe I'm thinking of the Macrovision option? Or would that be the same thing? I don't have DVDSP in front of me to look) - Mark