While attempting to upload some videos this week, WordPress did not allow me to upload certain file types. I found this helpful page and information:
http://msyk.es/blog/adding-removing-allowed-filetypes-wordpress-media-library/
I added the following code in the theme’s functions.php file to allow me to import my video files.
function my_myme_types($mime_types){ $mime_types['f4v'] = 'video/f4v'; //Adding f4v extension return $mime_types; } add_filter('upload_mimes', 'my_myme_types', 1, 1);