How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,www3.tvboxnow.com% G5 z, ^2 V! H6 c
www3.tvboxnow.com2 Z4 y) N8 i2 h4 S
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
1 }% j3 H0 y8 W0 t4 itvb now,tvbnow,bttvb
3 ?% D/ F/ T( ]. I" D' b3 DThank you very much