There are too many things that can cause this so called jerky movement. One thing that come to mind is to lower the burn speed to the dvd. In Burn in 2D/Final Burn/Configure check to see what it is set on and lower it to the slowest speed that you can stand for now.
You can check the Preferences/General settings to pal, etc. Disable all hardware accelleration and burn with hardware encoding unchecked. You can check the settings in your older PD version and make PD14 the same. I'm sure others will chime in to help.