Hello, Nero Burning ROM worked fine in all modes until tonight. I was about to burn a disc, and when I selected the type of disc I was burning and hit "new", Nero flat out just closes. The only thing that's changed on my system as of late is that I've installed Office '07. As mentioned, Nero has worked fine before in burning ISOs, Video_TS & Audio_TS DVD discs, standard CDs, just about anything you can think of. One final note, I have to run Nero in Windows 2000 Compatibility mode to get it to run at all.