the software is nero 7, and i also have tried roxio media 9.i tried burning movies on dvd-r,rw, dvd+r,rw, the brand is maxwell, memorex. i can not watch a movie, which i could do before. i can burn cds. my drive is about 3yrs old, but have never used it until this year. i have update the firmware to latest available. also i troubleshot with a dell rep.