I have the same problem as snmir415:
"igital Rights Error Your web browser is missing a digital rights component. In the address bar, go to opera://plugins and ensure Widevine Content Decryption Module is enabled. For further assistance, please contact Amazon Customer Service at www.amazon.com/videohelp and refer to error 7235."
Windows 10 (1607) Enterprise (64bit).
Opera Version information
Version: 40.0.2308.62 (32bit Opera)- Opera is up to date (as of 04 Oct 2016)
Update stream: Stable
System: Windows 10 64-bit (WoW64)
Widevine Content Decryption Module
Enables Widevine licenses for playback of HTML audio/video content. (version: 220.127.116.113)
CANNOT Play Amazon Video's (I also have VLC player installed (even though streaming this way would not use a local codec).