It is possible either the dvd burner or the standalone dvd player drive has a track alignment problem or the lens on the laser might be dirty. This can sometimes be remedied by burning the blank disc at a lower or the lowest speed.
In the Final Output window click the Configure drive button in the upper right. A Pop up window open. Set the Recording speed to the lowest if available. If a lower burn speed is not available, then you can check Create a folder. Use Power2Go(free) or imgburn(freeware) to burn that disc say at 4x.