The Aleratec 1:3 DVD/CD Tower Publisher SLS is a stand alone LightScribe disc publishing system with the capability of simultaneously producing up to 3 DVD/CD copies or clearly labeled discs, and no computer is required.   The duplicating and LightScribe labeling intelligence is built into the 1:3 DVD/CD Tower Publisher SLS controller. It has a USB 2.0 connection so that each recorder and its built in hard disc drive can be accessed by a PC, making it a powerful computer connected LightScribe disc publishing system for those times when you want to burn new labels and data images directly from the computer. The really good news is that you can drag and drop files from your PC directly to the hard drive in the publisher to free up your computer to do other tasks. * Stand Alone or Computer Connected operation * Up to 3 simultaneous DVD/CD copies or clearly labeled discs * Removable Hard Disk Drive to store disc images and label files * Aleratec one touch USB connect * Drag and Drop files from PC to Hard Drive in the publisher * Aleratec one touch Print Function access * DVD-ROM drive for fast on the fly copies Laser burn disc labels * No messy markers or costly ink cartridges, toner or ribbons * Disc Labels: DVD/CD LightScribe with LightScribe Media * Writable Discs: DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-R DL, DVD+R DL, DVD-RAM, CD-R, CD-RW * Max Data Writing Speed: DVD-R/DVD+R 20x, DVD-R DL/ DVD+R DL 8x, DVD-RAM 12x, DVD+RW 8x, DVD-RW 6x,CD-R 48x, CD-RW 32x * Max Data Reading Speed: DVD-ROM 16x, CD-ROM 48x * Removable Hard Disc Drive: 320GB * Power Requirements: 115-230 VAC Switchable * Dimensions:10.5" L x 7" W x 15.5" H * Software included: Aleratec DVD/CD Disc Publishing Suite * Minimum System Requirements: Windows 2000, XP or Vista, Intel Pentium II (or compatible), 400MHZ or faster processor, 256MB RAM, One available USB 2.0 Port