--- flickr-tag-youngwhan/FlickrTagEngine.php 2009-09-27 17:39:40.000000000 -0600 +++ flickr-tag-v1.1/FlickrTagEngine.php 2010-11-20 18:18:54.000000000 -0700 @@ -116,7 +116,7 @@ 'photoset_id' => $param, 'privacy_filter' => 1, // public 'method' => 'flickr.photosets.getPhotos', - 'extras' => 'original_format', + 'Extras' => 'original_format', 'format' => 'php_serial' );