Movie Maker 2, cannot save to CD

I am having a really annoying issue with my mm2!! I ask it to save to a CD, it gets to 58% and gives up. The microsoft support page suggests saving it differently and I tried that and promptly failed!!

I have used Movie Maker once before to do my holiday this year. That file is still on my computer, when I go to properties on the right-click menu on this file I get 3 tabs (General, Custom and Summary). When I do the same on the file I want to save now I get 1 tab (General). That is the only diffence I can see but I don't know if it means anything!!

Please help a desperate man about to start throwing things!