How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,公仔箱論壇& e* j3 Q. d$ A

* j/ \4 ^8 E; i4 v' e& Ctvb now,tvbnow,bttvbAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
; L  e5 n& {! Q! a! Ltvb now,tvbnow,bttvb
) S( f9 i; J, X. q+ z( j+ L5 EThank you very much