Our server currently doesn’t support uploading video files directly [*]. However, it supports very well embedding videos from common video hosting providers (e.g. youtube, vimeo, etc.) As Ying mentioned, the videos don’t have to be public on these websites. I personally upload the videos on youtube and set them as “Unlisted”. I then just need to paste the youtube link in a message here, and it is automatically displayed as an embedded video .
The link to your video needs to be on a new, separate line in order for the forum software to display it as an embedded video.
Let me know if I can help you in getting your video displayed here
[*] Hosting videos is actually not easy. It requires lots of space and computing power to properly encode each video to a format suitable to display on a web page.