You need to disable your packet writing software.
This is the software that enables you to drag and drop files from Windows Explorer onto the CD/DVD.
Such programs include
Nero InCD, Roxi drag to Disc, Ulead Data-Add 2.0
If you can't disable or find the conflicting program try putting the dvd into the dvd writer after you have created the menu OR put the dvd into the dvd writer when you are in the burning screen. Just give the program a little time to calibrate and recoginize the new dvd.