How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,公仔箱論壇9 [) Y6 e, j# b& h: k3 w8 U1 K
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Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?公仔箱論壇# A, h" ]3 P2 b* t% i; t
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Thank you very much