From your post, it's not clear (...is also integrated into DVDFab) but I'm assuming you have to have the 9.4 free version of the Nero burn engine in order to select it from the write options page in DVDfab.
However, after installing the free Nero burn software, and I select the Nero Burning ROM option I get the error message, "Failed to locate the Nero Command Program(NeroCmd.exe). When I search for it, it can't be found. Is NeroCmd.exe a part of the full blown Nero9 program and not part of the free version? When I search the Nero9 directory, all I find is the NeroSmartStart.exe file. I'm assuming this is the one that should be invoked but there's no way that I can find to do this in the program. Other than that, it appears that the install of the free program was completed correctly as I didn't get an error (The program install finished with a message stating that it was installed correctly) and I can run the program and select either the data burning or copy disk options.
Can you give me some instructions on this? And as long as we're on the subject, can you give me a brief description of the difference between the Nero and the VSO burn engines? and why I would choose one over the other?
Thank you