Is there anyway to select the burn speed in DVDSP?

One way to do it is to select the output as an .img file and save it to your hard drive. Then open up the Disk Utility application (Applications>Utilities>Disk Utility), select your .img file and burn. You should then get a window asking you to select your burn speed.

One advantage of the .img workflow is that if you need to burn more DVDs in the future, you don't have to re-open DVD SP and re-do any steps. Just go straight to Disk Utility, select your burn speed and burn.

Thanks David, worked great.