MRT is charging these companies with intentionally avoiding usage of its X1 Secure Recording Control DRM technology and thus violating the anticircumvention provision of the DMCA. The technology purportedly prevents stream capture and transcoding on Windows platforms.
Heard of "patent trolls"? MRT is now the world's first DMCA troll.
The richest of the many ironies here is that MRT's actions reflect a fundamental misunderstanding of the original intent of the anticircumvention law: to help companies such as Microsoft, Apple, Adobe, and RealNetworks avoid responsibility for implementing strong, effective DRM.
MRT is attempting to turn DMCA sideways by effectively accusing these companies of hacking their own technology, of vicarious liability through being able to adopt X1 Secure Recording Control (and paying MRT for it, presumably) but choosing not to.