I want to put all my home videos onto dvd for christmas. The only problem is that i have a 30 minute video and it takes up 6 GB and the blank dvds that i have only hold 4 GB, and i dont want to have to put just a 20 minute video on a dvd, it seems like a waste to me. IS there anything i can to do make the file smaller so i can fit more video onto a disk?