Thanks, I have a copy and will give it a try. However, I am not sure the problem is with the ROXIO software. DVDs created using ROXIO play fine on my PC and two others I have tried. They also play fine on several stand alone DVD players. The only failure has been on a MAC ibook. I created the DVDs using DVD+R media which I am starting to believe may be part of the problem based on other sites I have visited. I will also reburn on DVD-R media and see what happens.