Originally Posted by Aleron Ives /t/1513854/cablecard-vs-copy-once-why-only-wmc#post_24303155 Somebody would have to write an entirely new program from scratch, and most closed-source PVR software packages don't generate enough interest for their authors to consider pursuing support for copy-once programs (or CableCards at all). The only way MythTV could support copy-once recordings would be by becoming a closed-source program, which is impossible, because it is licensed under the GPL. If MythTV did this, it would be in violation of the DMCA, and the project would get shut down from the legal battle which would ensue.
If MythTV contained code to support copy-once channels, you could simply download the source code, modify it to ignore the copy protection, and then you could compile a new version of MythTV that would let you copy your formerly protected shows as much as you wanted, thus completely defeating the DRM. MythTV is free software, which means that its source code is available to anyone who wants it, and anyone who knows programming can make changes to the software.ĭRM is inherently opposed to the open-source model, because it relies on the end user not knowing how the software works, so that the copy protection can't be broken and can effectively cripple the operation of the software. The barrier is the concept of copy-once channels themselves. It isn't necessarily the cost that prevents PVR software such as MythTV from accessing copy-once channels: it would be easy to start a crowdsourcing campaign to generate the funds required for licensing. $15K each) or license just PlayReady because you don't need DTCP-IP for interfacing with an OCUR/DRT if you already have PlayReady). So you can either license DTCP-IP + PlayReady (this is where the $30K price comes from. One of those approved DRM schemes is Windows Media DRM 10 or newer (which includes PlayReady). For that, the DTCP-IP spec requires that copy protection be handed off to another DRM scheme authorized by the DTLA. It cannot be used to for persistent storage (recordings).
There are no CableLabs certifications required for software, only for the tuners. The only thing the software would have to license is PlayReady but they would also need license Dolby/MPEG2 for playback (they would be able to rely on third party decoders because it would break the protected playback chain).
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