I have a D/S player that uses the ASF reader. It works perfectly with non-DRM content (I am using the same clip for both tests, one with DRM, the other without). When WMDRM content is played, it works fine until a seek is done. If the seek is anywhere except 0, the graph stops playing (but does not hang). If I then seek to 0, it will play properly. On occasion, I have seen playback resume for audio, but not video. There are two additional observations: 1) The ASF reader is reporting the playback is progressing normally (calls to IMediaSeeking::GetCurrentPosition show the play time progressing normally). 2) The problem seems to be platform related. On other systems, seeking on the same DRM content seems to work fine.
