It means that Nero is not recognizing your burner,to confirm this,
try looking up your burner in Nero InfoTool,which you should be able to access,by clicking Start/Programs/Ahead/Nero InfoTool. Make sure all your connections are correct,then test it again,rebooting the machine after you've tightened your connects. If the hardware is not plugged in,neither will the software.
As an Asian friend of mine once said,Rots of Ruck...... :bigsmile: