Try the Media Library Assistant plugin:
http://wordpress.org/extend/plugins/media-library-assistant/
I’ve never used it, but it looks like you can bulk-edit media files’ taxonomies and filter them by whatever taxonomy you choose.
Try the Media Library Assistant plugin:
http://wordpress.org/extend/plugins/media-library-assistant/
I’ve never used it, but it looks like you can bulk-edit media files’ taxonomies and filter them by whatever taxonomy you choose.