I have read through all the previous posts and I am having a similar problem. Here is some back ground. I was running Win2000 when I bought my burner. I bought what I thought was a Sony DW-D18A, which I later learned was really a LiteON SOHW-832S. After much research on the web I learned that because my drive is gear driven that I could flash it as a Sony DRU 700a. I took this chance and it worked. I started burning discs at around 15 min. I'm using Nero Ultra Edition 6. Then I decided to upgrade to XP. Since I upgraded I can still burn but now it takes 50 min to an hour. After reading and researching again I installed the ASPI drivers and according to ASPICHK all is well, but according to Nero InfoTool all is not well. So I decided to uninstall the drive and then reboot. This did not help. Then I decided to uninstall the IDE controller. When I rebooted it reinstalled, but now there is not advanced tab to check the DMA setting. I am not lost. Can you offer any help?