I am not able to Burn a DVD when using saved video on Media Window Center.

I have a Dell XPS 420 with a Blu Ray. I am receiving the following error messages when I attempt to burn a DVD;

1. SBE Server has stopped working

2. Media Center Extensibility Host has stopped working

I have Attempted to change my DEP, but that did not work.

I would like to clear up some memory space that I have saved in Windows Media  Center.

Thank you,