[BlueCop]

amazon now uses playready/silverlight for Mac and Windows. Linux is still flash.

The licenses can be decrypted if you can get your ecc private key from the silverlight ibx. The matching public key is usually embedded in the XMR license.

I wrote at tool to parse the playready key files, secure store, certificate chains, revocation lists, and xmr licenses to help figure out all the data types contained.

They stream using smooth streaming. These are really just piff segmented mp4 files with its header stripped. It can be remade into an mp4 by generating a correct header from a manifest and A/V file segments.

mp4decrypt from the open source Bento4 can decrypt the file by specifying the AES content key for each encrypted track.

I don't think there is a standard method of obtaining your private key from the IBX because they are obfuscated differently.

FYI unlike netflix which does not encrypt their audio. Amazon does encrypt their audio streams.

The subtitles are not encrypted so can be downloaded/converted easily....