There are several reasons why you want to burn a movie to a DVD-R disc. First, a DVD-R can be played on most home DVD players (Advertised as compatible with 90%+ of home DVD players). Second, movies take up valuable space on your hard drive, especially when you can simply remove them and store them on a hard copy. Each movie takes up approximately 1G or more of space. If you have a small hard drive, space is limited. To gain extra storage, you will need to burn your movie files to a DVD-R. You can also watch these movies on your computer anytime, simply by inserting the disc and clicking on the movie.