I'm using iDVD for the first time. I've created a DVD, with menu's, to various picture slideshows, each with some music. Although I successfully render and then burn the DVD, it won't play in the superdrive it was created in or on the DVD in the living room (which works using same media burned on a PC) I'm using Fujifilm, DVD+R, single-layer. I've configured iDVD for single-layer media. I can't see any other settings/preferences that could be set incorrectly. Any ideas?