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! 公仔箱論壇/ |/ h$ ^4 C9 K- l+ I
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。9 J2 x" Z2 c% c' m! @
I am very appreciated if someone could be help this issue