Copystars Dvd Duplicator 1 to 5 Sata burner 24X drive writer CD DVD copier tower duplicator- 128MB buffer memory Made by Copystars USA professional facility, copy CD and DVD duplicator machine. Stand-alone (No PC Required), No Software is needed Support optional hard drive to enhance titles management,Do not copy protected disc included store bought and rental CD DVD 128mb DDr2 memory Buffer,Support DVD-R,DVD+r,Mini DVD, Data CD, audio CD,VCD, DVDRW,Dual Layer DVD,CDR. CDRW. 1800 unlimited toll free support , 3 years labor and 1 year parts warranty.