How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
0 c* q; V5 j8 m" i+ i0 z4 \* mtvb now,tvbnow,bttvbTVBNOW 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。3 b0 R" H6 i; H' j% U
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?% |$ |3 U- W3 N3 {) q1 K! O

: d* p2 I/ J/ ]( wtvb now,tvbnow,bttvbThank you very much