http://webcache.googleusercontent.com/search?q=cache:Rf-rBkloLwMJ:support.apple.com/kb/HT5475%3Fviewlocale%3Dko_KR+&cd=22&hl=ko&ct=clnk&gl=kr
http://rennflav.blogspot.kr/2012/11/2012.html
http://support.apple.com/kb/HT4432?viewlocale=ko_KR
