DESC: The Aleratec 1:15 DVD/CD Tower Publisher SLS is a stand alone LightScribe disc publishing system with the capability of simultaneously producing up to 15 DVD/CD copies or clearly labeled discs, and no computer is required. Before the introduction of the 1:5 DVD/CD Tower Publisher SLS, disc publishing towers required connection to a PC running sophisticated disc publishing software to duplicate and LightScribe label discs.