Creating a favorite theme is a simple operation, but iDVD offers no similarly direct method of removing a favorite. However, you can do it with a little poking around in the Finder.
To delete a favorite theme:
1.
Quit iDVD if it is running.
2.
In the Finder, locate iDVD's Favorites folder. There are two; the location of the one you want to delete depends on whether the theme was made available to all users or not.
If you enabled the Shared for all users option, go to [Computer] > Users > Shared > iDVD > Favorites (Figure 21.27).
Figure 21.27. A favorite theme shared by all users appears in Mac OS X's Users directory.
If you did not enable Shared for all users, go to Home > Library > Application Support > iDVD > Favorites (Figure 21.28).
Figure 21.28. If the theme will be used only by you, it's stored within your user Library folder.
3.
Select the file corresponding to the theme you wish to delete, and drag it to the Trash.
4.
Re-launch iDVD to see that the favorite theme is now no longer available.