well, it looks like you'll have to complain to Nero and find out why they write to the drive. as for starting and stopping it whenever you need to, there should be no problem provided you don't have a writeable disk in the drive that hasn't been closed. which version of Windows are you running anyway? WinXP has this builtin. some versions of Windows 2000 and Me also have this builtin.
Herb....
I recently installed Nero "InCD" to work with my cd burner, allowing me to use a cdrw disc like a floppy. Now for some reason I can't run my defrag because something keeps writing to the harddrive and it keeps having to start over. I don't really want to uninstall the program because I could see it being useful at times, but I also don't like the idea of something running in the background and creating other problems for the odd time I want to use a disc like a floppy. Does anyone know if I can disable it and then only enable it when I want to use it? I've narrowed it down and I KNOW the problem has 'something' to do with "InCD" because if I hit ctrl\alt\del and end task for InCD everything goes back to normal.
Any advice is greatly appreciated.

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