Why did I think your first post was in the FCP forum, there goes my mind again. (CRAP, it is in the FCP forum, I have totally lost my mind!)
Well problem with DVDSP is that it floats between an amateur and professional tool set. The in-house menus are for amateurs (not saying a person is not a professional if they use them, but most professional will not) Quality really sucks with them and I would not use them for any other than a quick screener copy. When authoring a real DVD I would always build it in PS or Motion, for me it is normally quicker and a lot less frustrating.
Also it needs to be understood that DVDSP is a dead program when it comes to being worked on. It is still and active app but it has not seen any real improvement since FCP5 days. If fact most of us just what some of the useless features removed (HD DVD is on the top of that list). I doesn't see this changing in the up coming version of FCS. So best thing to do is to use the out side apps and in the end it will look a lot better and your life will be less stressful.