I have a Dual Layer DVD that is 7.81GB. It plays back in one DVD player fine and all the navigation works. If I take it to a newer and better player 3 menu items don't play at all or stuttter when playing. I take it back to the original old machine and the same three segments don't play smoothly. Any thoughts? I'm using the automatic setting to choose the layer breaks. I tried to set up the manual breaks, but the dialogue box that the help list says will appear when I choose manual doesn't come up or at least I can't find it. I thought the break might have been causing the problem. Any ideas will be greatly appreciated. Everything works perfectly in the preview of the project.