How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,tvboxnow.com, ^/ [8 y5 W& ?3 m8 b: A8 v+ }
tvb now,tvbnow,bttvb1 _7 {( B, Y! {8 w( e  u
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
" H; z" C9 T( k% q" h公仔箱論壇
! ]6 O+ \. p, K! K2 E公仔箱論壇Thank you very much