This is a tricky one; roamed the internet, could not find a solution. Its not a PE14 specific problem.
Does your burner have the latest firmware installed?
Can you make a dvd folder and burn to disk with e.g. Imgburn?
@ Ann Bens, Yes I can make dvd folders without a problem. Only when selecting the DVD option then disc - type in the name of my movie then the slim or portable drive - then press Scan after which I get a 'invalid disk name' error message meaning I cannot click on Burn selection button. I restarted the computer many times, saved copies on file folders over six times but burning to DVD is a problem & I bought this software for this very reason.
Please do not double post.
Duplicate post deleted.
A internet search did not come up with an solution. Sorry.