Hi Brad, No, the DVD extension was never switched off. When I installed the older CD driver I thought all would be fine because I could simply switch between the two at will, but this doesn't seem to be the case. As it stands, I have removed the older CD driver from 1995, just leaving me with my CD/DVD driver from 2000, but that doesn¹t seem to be working. I can run CD-ROM's and music CD's just fine, but if I insert a DVD video disc, the whole thing goes kablooie like I've inserted a stick of dynamite in the Mac!