As a test... Create a DVD output ISO file and then use the FREE http://www.imgburn.com/index.php?act=download to write files or folders or ISO to disc for DVD or BluRay (send the author a PayPal donation if you like his program)
John's advice is solid! Question - how did you decide that your project will REQUIRE a dual-layer DVD?
Safe Harbor Computers
Yes, project requires dual-layer.
We are now planning on creating an ISO and burning it on a different
computer that will run the DL burner.
Again, how did you decide that your project will REQUIRE a dual-layer DVD?
1. Content exceeds 4.7 GB limit of single layer.
2. Customer asked for it.