How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
4 S" L% B! u5 r2 xtvb now,tvbnow,bttvb# ^5 X* [1 k  W5 x& _, O, s1 Q; D" C
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
* {  f, x/ p/ t  h/ ?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。
) X; j0 ~! j5 Y$ [7 I/ k+ u: m7 Etvb now,tvbnow,bttvbThank you very much