I've invested an extra dvd-rom brand liteon, i know it is a pain in the butt and quite a hassle but it is worth if you value your data as much as I do. in the past, i did not do this and a few dvd that wouldn't read are lost forever. an extra burner will do as well, if it fails nero cd/dvd speed test then it's bad. while you're testing you can burn a second one and so forth, make sure not to delete what your burned, move them to a directory and delete them later when necessary.
