Can anyone help? I have an external 2510A, basically the problem is that what ever make of DVD-R/RW disk I try to use it aborts the process. I am using Nero 6 and DVD shrink 3.1. When I burn DVD+R/RW disk there is no problem. My last resort was to download the firmware (2.16) as recomended by NEC, which was done by a computer specalist (not myself). Whilst he had the machine it worked absolutely fine, but when I got the machine home it stoped working. Mystery!!