I did try that.. and no luck. Basically you are supposed to take that zip file, CdDriver_26-05-2005, place it in the main Wavelab folder, unzip it, and then double-click on writer.reg.. correct? When I do that, the upzip replaces files in the folder, then I double-click writer.reg, it says it updates the registry.. then I give the computer a restart and go back into Wavelab and it still does not recognize either of my Plextor drives. I have also tried using the drvreg link, and when I open that it doesn't show any drives to select from. It's just blank.
I was able to save my Wavelab projects as .iso files and then just burn the image with Nero.. and those seem to play just fine in the Toshiba. I'll have to listen for any issues if I ever actually can burn the DVD-A's in Wavelab.
Thanks for the help +T