How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,公仔箱論壇$ }* O2 f) h! S  l

* u4 q6 F5 y7 g, }( v- g9 |tvb now,tvbnow,bttvbAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
+ ^& x- J; b- Q( n+ x  H6 u' X; 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。. m, h/ M, z9 |: Q, Z) {
Thank you very much