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Weblog:   MS DRM is pure smoke
Subject:   Do not have "Secure Audio Path" Enabled?
Date:   2003-07-22 15:04:44
From:   anonymous2
Perhaps the license rights for the files did not have the flag set that requires the PC to have a Secure Audio Path?


Very few MSDRM licenses will have this set as it only works (sometimes) on Windows ME and Windows XP with (I believe) certified audio drivers.


i.e. if you use the flag you remove a large percentage of your potential audience.


The facility is there in the DRM to remove the chance of this "exploit", but PCs aren't at that stage yet to fully support it, and at the end of the day you can *always* do LINE OUT->LINE IN if you really want to rip off some music and stop the artists/labels from getting paid.


> Chaz <
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  • Do not have "Secure Audio Path" Enabled?
    2003-09-17 23:18:44  anonymous2 [View]

    Nope. With watermarks embedded in the audio signal, connecting line out to line in doesn't work. The sound card (either the hardware directly or the software driver) will refuse to accept the signal from line in, and just become silent once it detects the watermark. The newest drivers for some sound cards already have this "feature", and in the future it will likely be everywhere (it may be even required by law).
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