Amazon DVD Shrinker is an easy-to-use DVD copying software to get perfect duplicates of your favorite movies on DVD or Hard Drive with just a few clicks. The shrinking engine can fit any DVD video (up to 9.4GB) on to your DVD disc (4.7GB/Single Layer or 8.5GB/Dual Layer) . It preserves all existing DVD contents including original menus, trailers, language tracks, subtitles, etc. You can freely adjust the target sizes of your DVD backup.