EZ Dupe's three target DVD duplication system includes three DVD+/-RW writers and a 500GB hard drive. Only carefully selected and tested materials are employed in EZ Dupe's professional line up of Studio Standard Rack Mount systems. With this system you can burn approximately 21 DVDs (4.7GB at 8x per hour). It supports DVD+R/RW, DVD-R/RW and DL DVD blank media formats, and automatically recognize format of source discs. The system is upgradeable via firmware so it will provide state-of-the-art service for years to come.