How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,* o8 G$ c" Y6 h- ^$ ^3 f

- K6 I# A. g$ ZAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
; t* g2 S; J: x* o9 Atvb now,tvbnow,bttvb# Y) G% \6 @- t
Thank you very much