Successful DVD-R burning with your DVD Burner and Roxio Toast is easy!
1 - Build a proper DVD volume first.
DVD Studio Pro will create this when you select the "BUILD DISC"
command in the File menu
Standard DVD Video Build Folder
You can also build a HYBRID DVD which contains both Video and Data
Hybrid DVD Build Folder
2 - Launch Toast Titanium - (you should upgrade to 5.0.2 or higher as soon as possible),
select the "DVD" format from the "Other" menu, then
drag the ENTIRE DVD volume folder onto the TOAST window...
Drag the entire Build Folder into Toast
3 - If it's correct, you will see the name of the Folder
(which will become the name of your DVD disc)
as the name of the DISC icon, and you will see BOTH the
VIDEO_TS and AUDIO_TS folders BENEATH the disc icon...