Burning single image with multiple drives

Does anyone know of a program, preferably stand alone, that will duplicate a CD, or possibly DVD using multiple drives?

A friend of mine has an old tower with four bays, and he runs a DJ business on the side. He wanted to use the old tower, and some ROM drives to speed up his duplication processes.

Basically he wants to build a homemade duplicator.

Freeware is preferable, and "frugal" software is OK too.

 

I believe Nero does what you want. Turn on the option to use multiple recorders.