What is the difference between DVD+RW/-RW and DVD-R/+R recordable DVDs?
DVD+RW and DVD-RW discs are sometimes called re-recordable or rewritable because you can record on the same disc more than once. When you burn video to a DVD+RW or DVD-RW disc, all existing data on the DVD is deleted, so make sure the DVD does not contain content or data that you want to keep. With write-once DVD+R and DVD-R discs, you can only burn video to the disc one time.
