inability to record a cd montage

Well, out of the blue, in an attempt to record a cd montage in Wavelab Essential 6 I get the box that says Preparing CD burning … but after it finishes the box disappears, and nothing burns. Prior to now, this program has worked flawlessly. I’m on a new desktop computer that I’ve had for over a year, … and it too works great. Thinking an install of ITunes has somehow screwed it up, I deleted that, … but Wavelab will still not burn a cd. Any help, please??? Thanks