How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
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2 W1 v: _8 d; x& p0 F4 c1 q- T! EAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?公仔箱論壇$ ~' o0 R( q, }& d- _/ o
公仔箱論壇; _8 T8 G* o/ j( N4 k
Thank you very much