I have a Sony DVD burner and DVDA and Sony's DVD burning software (well actually its from veritas unless you mean the myDVD thing or whatever that they also thro in ith the recorder but I loaded that as well and still DVDA burns fine.
The latest Nero will make a rather sad attempt at DVD authoring i hear.
1.) File New
2.) dropDown: DVD
3.) use DVD-Video Template (Nero sorts the Vobs)
4.) drag&Drop your video files from the prepared DVDA Folder to video_ts
and burn it, or make a test-run with your image-recorder and Nero ImageDrive.