How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
% r5 d0 s+ C7 `) U! T5.39.217.76tvb now,tvbnow,bttvb# G1 U( [+ h- y) x* c
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
2 e9 h( G8 P1 R+ gTVBNOW 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。5.39.217.764 S$ ]3 i( ~/ c2 ^9 d& S$ G
Thank you very much