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Removing DRM protection from video streams

(http://stream-recorder.com/forum/showthread.php?t=1770)

sectroyer 09-14-2007 02:51 AM

Re: Removing DRM protection from video streams


 
I believe it is asf file (It's recorded stream, so I can give it any extension I want :D)

sectroyer 09-14-2007 02:52 AM

Re: Removing DRM protection from video streams


 
One more thing. I don't get any error (when using FairUse4WM). The undrmed file just doesn't play.

Stream Recorder 09-14-2007 08:03 AM

Re: Removing DRM protection from video streams


 
Is it a free web-site? Can I download the file to try?

sectroyer 09-14-2007 12:14 PM

Re: Removing DRM protection from video streams


 
No it's not free site. But I successfuly downgraded to WMP 9 and DRM 10.0.0.3436. Now both drmdbg and FairUse4WM are able to decrypt recorded stream. I would like to create some tool that would allow watching drm protected streams on linux and other systems. I registered on doom9 but I have to wait 4 more days to be able to post :( So I would like to ask you few questions:
1) Is there anywhere source code for drm2wmv? I read somewhere that it was posted on the net and acccording to author of FairUse4WM it's based on technics explained (and implemented) in freeme
2) drmdbg shows us the SID (this is where I got mine) but is there any way to get SID from FairUse4WM (it works with newer versions of drm)
3) How can I check which drm version was used to protect specific file? Is there any difference in the header or something like this?

sectroyer 09-14-2007 12:16 PM

Re: Removing DRM protection from video streams


 
And finally one more thing if I understand correctly there are three kinds of files that can be drm protected wma,wmv and asf. My question is if there is any difference in undrming this files?

sectroyer 09-15-2007 12:28 PM

Re: Removing DRM protection from video streams


 
I started hacking freeme source code to change it into something similar to drm2wmv unfortunately freeme is only able to undrm wma files. Does anyone has a link to some free wma drm2 protected files that work with IndivBox.key ver: 10.0.0.3646?

Stream Recorder 09-16-2007 01:59 AM

Re: Removing DRM protection from video streams


 
Quote:

Originally Posted by sectroyer (Post 3755)
No it's not free site. But I successfuly downgraded to WMP 9 and DRM 10.0.0.3436. Now both drmdbg and FairUse4WM are able to decrypt recorded stream.

You must be using an old version. fu4m13fix2 works with the latest version of WMP.

Quote:

Originally Posted by sectroyer
How can I check which drm version was used to protect specific file? Is there any difference in the header or something like this?

DRM v1 is used for files ripped from CDs with your WMP. All files that can are streamed or available for download use DRM v2.

Quote:

Originally Posted by sectroyer
4)And finally one more thing if I understand correctly there are three kinds of files that can be drm protected wma,wmv and asf. My question is if there is any difference in undrming this files?

FairUse4WM works with all of them. But I don't really know how it does it.

There are also DVR-MS files (Windows XP Media Center Edition) that are actually ASF files with MPEG-2 video. FairUse4WM can remove DRM protection from them.

sectroyer 09-16-2007 04:08 AM

Re: Removing DRM protection from video streams


 
And what about some free/demo drm2 wma protected files? Do you know where I can find at least one? I need to test if my changes to freeme are correct :(

Stream Recorder 09-16-2007 01:09 PM

Re: Removing DRM protection from video streams


 
You could just google for the demo.

_http://www.smsmusicmaker.com/smm-demo-drm.wma

sectroyer 09-16-2007 02:59 PM

Re: Removing DRM protection from video streams


 
To get the license for this demo I would have to send sms message in great britain. Unfortunately I don't live in UK :( Maybe someone who lives there can get the pass (needed for activation) for me?


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