TELESTREAM DESKTOP SUPPORT SUPPORT Perhaps you're referring to Windows Media that is has DRM protection? According to Microsoft "Windows Media Digital Rights Management (DRM) is a proven platform to protect and securely deliver content for playback on computers, portable devices, and network devices. The latest version offers increased flexibility to support a wide range of business models that provide consumers even greater access to protected audio and video content."
Currently, Microsoft only makes Windows Media DRM technology available for Windows Operating Systems & other device platforms. In our previous discussions with Microsoft, they indicated that they had no plans to offer DRM support on the Macintosh. We're hoping that they will be able to change this policy.
(Version 2.2.1.7b)