DVD-Recordable discs offer 4.7GB or 120 minutes of DVD-quality storage capacity ideal for recording home movies and video clips. These are one-time record discs, ensuring that your movies, video clips or other data will not be erased. DVD-Recordable discs are available in DVD R and DVD-R formats. Today, most DVD writers and readers use these discs interchangeably, with no noticeable performance differences. With older units, check your manufacturer's suggested DVD format to ensure compatibility.