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! tvb now,tvbnow,bttvb, m' m( B) d6 R5 ?& V) V
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。1 C. k! m9 @9 @1 {* j: a7 d
I am very appreciated if someone could be help this issue