Locate and trash, the 'Toast 7 Titanium' (or equivalent) folder, in either the '/Applications/' or '/Applications/Utilities/' folder.
If the 'Toast 7 Titanium' (or equivalent) folder is in neither suggested folder, select the 'Finder' 'File, Find...' menu item ('Command F'), or via 'Spotlight' ('Command <spacebar>'), and search for 'Toast'.
Locate and trash, the 'Roxio' folder, in the '/Library/Application Support/' folder.
Locate and trash, the 'CDSpinDoctor' folder, in the Users '~/Library/Application Support/' folder.
Locate and trash, the 'com.lqgraphics.motionpictures.plist', 'com.roxio.deepseasoftware.CDSpinDoctor.plist', 'com.Magic Mouse Productions.Discus.plist', and 'com.roxio.Toast.plist' files, in the Users '~/Library/Preferences/' folder.
The above actions remove 'Toast Titanium', its support files, and any related files to the applications 'CD Spin Doctor', 'Discus RE', and 'Motion Pictures HD' - provided with 'Toast'.