Gary,
I had a similar problem as you with blank disk after burn. I use a Pioneer DVR-710 internal burner. I just purchased Express Burn last week and I would start Express Burn and click on "Add Files" and selected the files I wanted to burn. Then I would click on "Burn CD" in the lower right corner. At this time a drop down window would display and ask whether to "Burn directly to internal burner" or "Burn using Windows Media Player." I did not pay attention to this window close enough. It was defaulted to "Burn directly to internal burner" and everytime I tried to burn this way I had the same problem you did. I finally paid closer attention and chose the second option "Burn using Windows Media Player." I no longer have problems burning CD Disks. It works great now however I am not sure this will solve your problem but thought I would suggest it.
Good Luck
Dick