Posting clips

so. I’m attempting to post video clips from my system but am told the format is incorrect.
What gives?

Clips need to be posted on YouTube and the link posted here or convert them into an animated gif and post directly. There is a file size limitation however.

This forum does not have the ability nor server capacity to be the host for video files. You have to use a 3rd party for hosting those files. Upload your video clip to that host. Then provide a link to that clip here in this forum.