Open iDVD and choose “Create a New Project” in the dialog that appears.
Type a name for your project in the Save As field, and then click Create.
The iDVD window opens with a default theme selected. You can ignore this because an autoplay DVD does not use a theme.
Click the Map button (shown below) to open the DVD map.
Click Media to open the Media pane, then click Photos or Movies.
Drag a movie or a photo album, or even a single image, from the Media pane to the project icon (shown below). You can also drag images or movies stored elsewhere on your computer or a connected server.
You can use photos, movies, presentation slides (created in a program such as Keynote), or other image files in a slideshow created in iDVD. iDVD works with any image file that is supported by QuickTime (including PICT, JPEG, TIFF, and PDF.)
To turn on looping for the autoplay movie or slideshow (a single image is also considered a slideshow in this context), click the project icon and then choose Advanced > Loop Movie or Loop Slideshow.If you added a movie with sound, the audio of the movie is retained, so the viewer hears it during autoplay.
If you added a slideshow, you can double-click the project icon to open the slideshow editor. There you can add a single audio file or a playlist as a soundtrack and set other slideshow features, such as transitions and slide duration.
Click the Preview button (shown below) to see how your movie or slideshow looks.
The iDVD remote control opens, and your DVD begins to play immediately.