How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,公仔箱論壇4 W8 c  T4 K0 N0 i* n0 z
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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. b2 N, M3 l* d" H- W
5.39.217.77( ~. B6 G  D7 b* W+ [
Thank you very much