Well that is a problem of the API, but at least it can recommend what the best string to put in the source tag's type attribute. > If the browser is not aware

Well that is a problem of the API, but at least it can recommend what the best string to put in the source tag's type attribute. > If the browser is not aware of any of these In my case the browser is playing the file, so it should know what info is there. But ideally it would at least make a best-effort attempt.