ok, what's the best quality out there? I wanna be able to backup mp3s, mpgs, etc onto dvds. Also need it to be a good CD burner cuz i'm a dj as a hobby and like to record my sets to audio cds as well. I was leaning towards getting a plextor dvd burner...is this a good idea or is there something better. p.s. what's the difference between DVD-RW and DVD+RW?