I am having a lot of trouble getting my first iDVD project to complete successfully...i have created a 54 min movie in iMovie 3, added chapters, and then hit "create iDVD project"...in iDVD i let the whole movie encode before burning...i have my screen effects off and turn off my energy saver...iDVD was the only thing running...the dvd's scene selections dont work, it only plays about the first 20 minutes and then stops...if i try to select a scene further into the movie, it either jumps to an earlier scene or crashes may laptop/dvd player...any ideas what could be wrong?..i have wasted a lot of time and 3 dvds so far...if there is any other information i need to provide in order to get some help, let me know...thanks....