I have successfully managed to convert avi file in movie factory 2 to burn to dvd+r. But when it goes to burn it onto the dvd+r, I receive an error message which says "Disc Space is not enough. Insert a new disc to retry or press Cancel to stop the process." I have entered another disc but still receive the same message, on the screen it says required space 4.0gb, available space 4.4gb.??? Can anybody please help?