A:Answer Dvd r & dvd rw: the R stand for recordable, RW stands for rewriteable. The mqin dif is that the R disc formats can only be written to it ONCE, then its onlt readable & cant be erased. The RW discs can be written to & erased MANY TIMES. They are both readable & writeable. R is perfect for only writing once. RW has the strength & ability to use many times over. RW are slightly more expensive but you would need to decide which is best for you. I hope this helps.
