How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,tvb now,tvbnow,bttvb  {3 I4 T+ l: [6 f. a9 E

* c& v  S. ?' X: I/ LAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?tvb now,tvbnow,bttvb7 x5 k* j, h) Z9 T

! _3 N7 X1 h- t; I* J' `tvb now,tvbnow,bttvbThank you very much