不用安裝 RealPlayer 及 QuickTime Player，只要安裝Real Alternative及QuickTime Alternative，就能用其他播放器(如 windows media player 或 media player classic)播放real及quicktime檔案。
Real Alternative 網址
http://www.free-codecs.com/download/Real_Alternative.htm
QuickTime Alternative 網址
http://www.free-codecs.com/download/QuickTime_Alternative.htm
