Burn problem with Sony DRU800A Dual Layer +R

[mkoven]

I tried burning a DVD from an ISO file to a dual layer +R Verbatim disc.
It got 92% thru and then just stopped. No error code. I updated the firmware on the drive and tried it again and same problem. I am using DVD Workshop 1.3 with the Dual Layer burning upgrade installed. I tried burning with a different buring program and it worked fine. Must be something with DVD Workshop. Has anyone had similiar problems with this burner or any other?
Marshall