I have this problem. Every time i try to burn a DVD the burning process stalls while in file caching. It burns CDs without problems. Burning the same DVD discs with this drive (Nec ND-3500) works well on another computer i tried. I've also tried other burning software and strange enough with Alcohol 120% burning images works but that doesn't help much. Every other burning soft stalls already when caching. I've actually tried almost anything and nothing seems to help..