How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,9 |$ f, I* ^5 w' ?7 T% _4 F. f
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Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?tvb now,tvbnow,bttvb' X2 p" n! `, F6 _
www2.tvboxnow.com3 U& R0 d+ U) b" D& X
Thank you very much