回複：DVD+R和DVD-R的區別？

A DVD-R and DVD+R share similarities in that they are both write-once formats, they both have single-sided capacities of 4.7GB, they both need finalization after recording for broad playback, and both can be used for either data storage or video applications. The major difference is that they are not interchangeable when it comes to recording. Because each format writes information to it's corresponding disc differently, DVD+R discs must be recorded by a +R drive or video recorder, and DVD-R discs must be recorded by a -R drive or video recorder. Once recorded, they share similar playback compatibility.