I was able to change the media size under preferences, tried again with no luck. Then I noticed that when I go to ‘prepare/burn’ it takes me to the message window, click next to a ‘make dvd’ window where it shows the media storage amount PLUS a “Free storage space in the selected folder:” with only about 21MB available. Does the program send the entire dvd to some holding tank (folder) and THEN to the burner? I looked under Win Expl for the folder (to try and up the free storage amount) but could not find it.