Avoid splitting of DVD-Images?

I want to create an image of Act of War with BW5 to use it with Daemon Tools!

My problem ist that Daemon Tools seem to doesn’t like splitted BW5-Images (Parts: .B5I, .B00, .B01).

Using the “Don’t split Image”-Option in BW5Tweaker doesn’t work!

How can i stop BW5 splitting the Image?

I use WinXP with NTFS, no need of splitting files!