Security error?

If you are on a single installation of WordPress, add this to your wp-config.php file in the root of the site:

define(‘ALLOW_UNFILTERED_UPLOADS’,true);

If you are on a network installation, add .webm to the list of allowed file types under the Network Administration page.

Thanks!

Dustin

You can add this to your functions.php file. It will define all three formats as acceptable:

function add_webm_mime_for_upload($mimes) {
$mimes = array_merge($mimes, array(
‘webm’ => ‘video/webm’,
‘mp4’ => ‘video/mp4’,
‘ogv’ => ‘video/ogg’
));

return $mimes;
}
add_filter(‘upload_mimes’, ‘add_webm_mime_for_upload’);

More information can be found here: http://codex.wordpress.org/Plugin_API/Filter_Reference/upload_mimes