Also you should use the CDN to redirect to the correct mirror
The web server returns redirect responses to mirrors that wget follows.
Just to clear this up: cdn.media.ccc.de is the new name for ftp.ccc.de. It was renamed because it does not actually serve FTP anymore, since HTTP can be load-balanced a lot better.
If you just use downthemall you get the advantage of mirror brain/metalink support.