how to convert (RMVP to wmv)

Could anyone tell me how to convert RMVP to wmv....? (or any format could be read at Pockeet PC) I want to watch movie at Pocket PC! TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& p, U" ]) M8 w, ?; K4 @9 A
公仔箱論壇, a8 E+ c3 n+ R7 n, ~$ N/ H7 F5 y
I am very appreciated if someone could be help this issue