PROBLEM NOT RESOLVED
Hi kisbeSL. Thank you for your reply although I'm sorry to report that this solution didn't work for me. I think I first noticed the problem after my computer was restored by Dell after the Windows 7 system developed a separate fault. I've never installed any of the other Microsoft Essentials. I did try rolling back my current Movie Maker to v2.6 like you said kisbeSL and then tried burning a DVD in DVD Maker but the same problem was duplicated I'm afraid. I really don't think that rolling back one program can fix another. I started out yesterday with ten new blank DVDs and that's six failed attempts I've made now to resolve the matter. What really gets my back up is that nobody from Microsoft is dealing with this! The DVD Maker is a pretty integral part of the Win 7 Multimedia experience and is simply bugged and unusable and this fault has been around for 3 long years without any peep from Microsoft offering a solution. Judging by this thread, Gokul's assertion that converting the movie to WMV format in Movie Maker "has helped a lot of users in fixing the 16:9 aspect ratio issues" sounds baseless so my advice to anyone else suffering this problem is: don't go wasting your valuable time and disks trying any of the above 'fixes'. I'm afraid you will need to accept that Windows DVD Maker simply doesn't work and move on. Face the fact that Windows are ignoring the problem (they haven't visited this thread for 3 years), look for a third party app for creating DVDs instead, and next time you are thinking of buying a computer, think seriously about whether you can risk the idea of having a Windows system that doesn't do what you originally bought it for in the first place