encrypted flv-files from amazon (payed license)

[me123]

Hi,

I bought a season on amazon instant video for 25 bucks (NO rental). The problem is that I'm really tired of buffering. I want to watch my payed videos without technical interruption.

So I googled a lot and managed to download an episode with rtmpdumphelper. But the video- and the audio-streams are encrypted (envc and enca), so I can't play the flv-file (mediainfo prints plausible data, but it is unplayable). As I bought the season and own a license for this video, is there any way to remove the DRM? I just need to "use" my license the way the flash-plugin does, if I'm streaming.

Is anybody out there who managed to remove such DRM?

Thanks in advance
me123