I'm trying to design a sophisticated DVD menu where I can store family quotes and have them display in a random fashion each time the DVD is played or if I go back to the main menu (The quote would then change).

Is there a way to do this?

Not familiar with this product, but check to see if you can display in random order. Specifically, you would change the 'PG playback mode' in the IFO to either 'random' or 'shuffle'. In either of these modes, you would specify number of cells in the PGC that you want to play in random order. The difference between the random and shuffle mode is that the random mode may repeat a cell before a specified number of cells has been played, and the shuffle mode does not repeat the cell until all cells have been played. You can specify more than the number of cells in the PGC, in which case cells will be played more than once.