I just buy a new Nec-3500AG few weeks ago. In the beginning, the burning speed is to copy DVD movie.But the burnning speed is getting slow. Right now, it will take about 2 and half hours to burn a 2hr movie by Nero(not including ripping time). The speed show on Nero are 6X(the speed can up to 16X) though. I don't know what wrong with this?　 I've done everything I can do. Here are what I did. First of all, I updated the firmware of NEC burner to 2.18. I use Nero 18.104.22.168 to burn and Shrink 3.2 to rip it. Secondly, I　checked IDE ATA/A ATPI controlloers to make sure it is set as "DMA MODE". I use Fuji 8X DVD+ to burn it. My ram is 718,celeron and XP Home edition. And finally, I reinstall the XP. And the problem is still there... Can someone tall me what esle I can do to slove this ?