I have an iMovie that is about 30 minutes long. Unfortunately my TiBook 800 is getting long in the tooth. So I broke the iMovie up into 4 smaller movies that the powerbook could handle. When it comes time to add the 4 movies into iDVD, I want it to playback as one large movie. I remember back in the day DVD Studio pro 2.0 allowed me to do this. How do I go about doing it iDVD 6?