Upload Quicktime file

Hi

I am trying to upload a quicktime file (.m4v) but it is failing saying i am trying to upload an invalid file type.

Here is the relevant section from mimes.php

PHP Code:

    'qt'    =>    'video/quicktime',
    'mov'    =>    'video/quicktime',
    'm4v'    =>    'video/x-m4v',
    'mp4'    =>    'video/quicktime',
    'avi'    =>    array('video/x-msvideo', 'video/msvideo', 'video/avi', 'application/x-troff-msvideo'),
    'movie'    =>    'video/x-sgi-movie',
    'mpeg'  =>  array('video/mpeg', 'video/quicktime'),
    'mpg'   =>  array('video/mpeg', 'video/quicktime'),
    'mp4'   =>  array('video/mp4', 'video/quicktime'),
    'mpe'   =>  array('video/mpeg', 'video/quicktime'),
    'qt'    =>  'video/quicktime',
    'mov'   =>  array('video/quicktime', 'video/mp4'),
    'avi'   =>  array('video/avi', 'video/x-msvideo'), 


and here is the relevant section from my controller

PHP Code:

       $config['upload_path'] = 'uploads/';
        $config['allowed_types'] = 'jpg|png|m4v|mp4';
        $config['max_size'] = 5000000;
        $config['encrypt_name'] = TRUE; 


Can any one spot anything wrong?

Thanks