DVD duplicator perform simple disc to disc duplication plus built in hard drive and usb 3.0 connection copy stars smart+ usb function can directly load is image files from a pc onto the duplicators hard drive (hdd) without using any special software. The process is done by simple mouse action of drag and drop between windows folder. After the is image file is transferred to the duplicator’s hdd, it can be managed by the hdd manager function in the duplicator lcd panel. The loaded file can be used as a master source to start the duplication process. The duplicator has intelligent design which automatically recognizes the source disc format. Controller utilizes familiar "esc" and "ent" buttons with tactile feedback for easy navigation # system is updated-able via firmware or maintenance purpose # password protection modes prevent unauthorized usage # fully stand-alone system no computer no dvd duplicator software is required. Operating type stand alone internal interface data buffer memory128mbfast ddr2 buffer memory-memory speed 4x faster than competing models using sdram performance and reliability-tested for maximum compatibility and stability multi-language support-language is displayed in: English, Spanish, Portuguese or Japanese dual-level security-separate startup and setup passwords to prevent unauthorized usage. Control button4 button operation maximum writing speed dvd+/-r: 24x, dvd+/-rw: 8x, dvd+/-dl: 8x, cd-r: 52x, cd-rw: 32xsupported disc formats dvd-rom, dvd-r, dvd-video, dvd-rw, dvd+r, dvd+rw, dvd+r9, cd-da, cd-rom mode 1, CD-ROM xa mode 2, multi-session photo cd, cd-I, video CD, cd extra (cd plus)supported recording discs12cm 4.7gb dvd-r/rw, 12cm 4.7gb dvd+r/rw, 12cm 8.5gb dl dvd, 12cm80min/700mb cd-r, 12cm 74min/650mb cd-rw, 8cm 1.47gb mini dvd-r, 8cm24min/210mb mini cd-r, 8cm 50mb business cd-external pc linkusb 3.0 smart operating temperature40°f ~ 95°foperating humidity20% ~ 80%.