The tool is very nice! I have successfully downloaded many Amazon movies and shows to my computer and saved them as MP4 files. And their customer service is very fast as well. TuneBoto is worth 5 Stars all the way! It has an easy-to-use interface, a quick download speed, and retains the video quality perfectly. Love it! I use it to watch Amazon offline on more devices, including TV, PS4, etc. You can have a try!