For those who do not have CD/DVD System Prefs pane because their machines don't have optical drives and who DO NOT use iTunes at all, like myself, a hack/workaround follows:
1. Right-click iTunes and select "Show Package Contents"
2. Navigate to Contents/MacOS.
3. Look for a UNIX file named "iTunes" and rename it to anything you like. I renamed mine "iTuned_Disable"
4. Close the folder.
DISCLAMIER: This is something of a nuclear option because it will prevent iTunes from opening entirly. Should you want to open iTunes again follow the above steps and rename the UNIX file back to "iTunes" and then launch iTunes.
Hope this helps...thus far this has totally solved my problem.