Well it compiled. The media player example works, and my app works with local files, but not with streams. Either it will just sit there in the loading state forever, or it will output "an error occurred "IDispatch error #149"" and go into the error state. So it seems the directX backend isn't entirely done yet, because the same code works on Linux with the xine backend (using the separately packaged libphonon which KDE4 uses)....