Moodle can play several different file types, but the player often does not recognise and display the video preview window correctly.
You can upload mp4, avi, wmv and wemb video files to Moodle. To get them to play correctly you have to rename the file to “.flv” in the link.
Follow these steps:
Upload the video as normal using the file picker. This example is a .webm video type.
Insert the video and see the link in the editor:
Right click on the link, and choose Insert/edit link:
Rename the Link URL from “webm” to “flv”:
The video preview will then appear: