This is the type of code that needs to be added to your functions.php file in order to allow you to upload files into your media library. function custom_myme_types($mime_types){ //add a new array item to this array to allow uploading of that file type. $new_mime_types = array( 'ogg' => 'audio/ogg', 'ogv' => 'video/ogg', 'webm' => […]