Windows Media DRM (WMDRM ) 10 is a Microsoft technology for protecting and delivering media content. It is available on a computer, portable device, or network device.
Some devices based on the Symbian platform support WMDRM in addition to OMA DRM. However, DRM Audio Player API does not support WMDRM, and therefore the devices can only play the content offline.
For more information on WMDRM, see the Microsoft Web site.
When developing your application, keep in mind that OMA DRM and WMDRM are not interoperable.