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How do I strip "Giant River Company" encryption from purchased movie? (lemmy.dbzer0.com)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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Ages ago I bought a movie off of a certain company's video streaming service. We will call them GRC for short since I do not want to draw the attention of their bots. I downloaded the movie onto my PC via the GRC Windows 11 app, but rather than a simple .mkv like I hoped, I found a folder with 5 different files. Two of them are .mp4s whose names end with audio_5 and video_12 respectively. Two of the files are something called .MPD files. One of them is something called a .DFXP File.

Does anyone know how I turn this mess into something I can play off a Plex or Jellyfin server? The *_video_12.mp4 is 110% encrypted since nothing plays when I run it through VLC.

Edit 1: I am doing my own research as well. An old thread a few years back claimed Aimersoft could break the encryption, but when I tried to use it the program just crapped out on me. If anyone is reading this and doesn't know the answer, you can help out by upvoting the thread. The more eyes that are on here, the higher the odds we can break this DRM together. Thank you :)

Edit 2: I believe the encryption can be removed with ffmpeg, but I will need to get the WV encryption keys first. Does anyone know how to do this?

Final Edit: From my readings in this thread, and research elsewhere, this sort of project looks to be best done in the hands of pros. Intercepting these keys requires a certain degree of skill I do not have. So to answer the thread's titular question: "Bypass it all together." Get a capture card, HDMI splitter, and just record the movie.

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[–] [email protected] 2 points 1 year ago

and grab the video from something like 1337x in a decrypted format.

This was extremely tempting to do, but this is a bit of a niche movie and the only copy I can find on public trackers (the cons of being a debrid user) with any seeds is one of absolutely abysmal quality. Like my 480p DvD version on my shelf is better than that 1080p torrent.

They use PlayReady DRM so a browser extension might be able to pull the decryption key during playback. One could download that same stream from that playback season then use ffmpeg with the pulled key to decrypt.

I will look into this. Thank you :)