How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
' Y9 P" }1 a  X8 V5.39.217.77
3 z  G. F" O+ }, C; V' `6 R" Dtvb now,tvbnow,bttvbAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?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。- @# T2 l- i( I- @

4 r8 U# f& p( m- J/ [Thank you very much