Video clips has not formed a huge part of Radiopaedia.org to date, however in the setting of ultrasound, cardiac studies and some other dynamic studies, they are essential.
Recently we upgraded our video support to improve loading times and to ensure that they project well in both view and quiz mode. More improvements are clearly possible, and will be carried out in due course :)
We are looking forward to many more obstetric cases in the near future.
As a taste, please have a look at some of Dr Cathy Culvers cases.
Currently the video must be in MP4 format, H.264 encoded. If your video is not in that format already, then there are many utilities to convert them, including Evom.
Help page: Video