https://bugs.winehq.org/show_bug.cgi?id=45862
--- Comment #8 from boskar bozkar@gmail.com --- This particular bug seems to be fixed.
Currently Radiant DICOM Viewer cannot export to mp4 because MPEG4 for some other reason- see below.
0370:trace:mfplat:MFStartup 0x20070, 0. 0370:trace:mfplat:MFCreateSinkWriterFromURL L"C:\MOVIE-0001.mp4", 0000000000000000, 0000000000000000, 000000000AC9EF28. 0370:warn:mfplat:sink_writer_get_sink_factory_class Couldn't find factory class for container {dc6cd05d-b9d0-40ef-bd35-fa622c1ab28a}.