video and audio formats supported by all browsers

Question

I am having form where the user uploads a video or audio about his company, and it will be displayed to the visitors. Now, I think all the video and audio formats uploaded by users will not be supported by all the browsers..

I refered to https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats already..

So I want to know what are common audio and video supported by all browsers..

Please help me...