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。: ~6 D8 F2 X2 e" M& {- ~' q7 K' i; e
tvb now,tvbnow,bttvb2 T, U# s, f! v8 z6 `. `$ w
I am very appreciated if someone could be help this issue