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You wouldn't be able to download Amazon movies to a flash drive due to encryption on the movies itself. If you're an eligible Amazon Prime or Prime Video member, you can download selected Prime movies and TV shows to a compatible device in addition to streaming them instantly.
If you're using a compatible device, a Download option displays in the video details for Prime titles you can download.
Note: Download availability depends on our agreements with content owners. We're constantly working to establish and enhance these agreements so we can offer a download option for as many Prime titles as possible.
To download Prime Video titles:
Tip: For TV shows, select the episode you want to download, and then look for the Download ("down arrow") icon.
Once the download is complete, a "Downloaded" or "check mark" icon displays in the video details. You can also find your completed video downloads by selecting the Downloads option in the Amazon Video menu.
The time period you have to view a downloaded video while your device is offline varies by title.
A notification typically displays onscreen when the viewing period for a title is almost over. On-screen notifications also display if you've downloaded the maximum amount of Prime titles (across all the devices on your account) and need to delete one or more to proceed with the current download.
Trouble Downloading Prime Titles?
First, make sure you have an eligible Prime membership. For more information about eligibility, go to About Prime Video.
Also make sure you're accessing Prime Video from an eligible U.S. location. Due to licensing agreements, Prime Video is only available to customers located in the United States and U.S. territories.