There are 2 types of DVDs you can buy at the store, R and RW. It says DVD+R, so that just means it's only a 1 time writable DVD. You want one that says DVD+RW or DVD-RW (+ and - doesn't matter in this case). The RW logo doesn't actually mean it's a rewritable DVD, just like the DL doesn't mean it's a dual layer either.