Problems creating .BIN files with CDRWIN

I want to use AutoDummy to add a dummy file to one of my backups.
When I try to use CDRWIN, it fails as there are two tracks (Audio & Data)
What is the best way of doing this? Do I need the Audiotrack, or should I just copy the data track.

Instructions, or a link would be gratefully received.

Many Thanks,

Paul Ryder