ProDuplicator CD/DVD M-Disk Duplicator Disc Copier, Internal 750MB Hard Drive

Stand-a-lone or computer connected via USB high speed duplicator for 1 to 3 or 4 disk copies with 750gb hard drive. As a standalone it is 1 to 3, from the hard drive it can be a 1 to 4 duplicator. This will check to see if all the copies are accurate.