Burning to external DVD drives simultaneously.

Does anyone know if it is possible to burn to two(or more) external drives simultaneously? I've been able to get DVD Studio Pro to recognize and burn to one drive, but not to the daisy chained identical drive I have attached.

Any suggestions?

You need one copy of the application writing to one physical device. If you need multiple copies made, you'd be much better off burning the first copy and using a CD/DVD disc duplicator mechanism to make multiple copies from there.

You can also make one copy at a time from Toast. Whether running DVD SP to one burner and Toast to another would work, is questionable. That's why the multi drive burners exist.