Click on "Disc" when you are done!
Before hitting the "Record"-button, make sure that you have free discspace! You will need the size of the .mpg in free discspace!!!! You can change the path to were the tempfile is stored. Default is c:\windows\temp. The tempfile path can be configured under "Options".
Well, now you can start burning!
If you are doubtfull, you can always choose: "Simulate writing..." or write to a image-file
Done!