How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,
+ i8 C: L$ d4 X) l+ E- e+ E5.39.217.76
( ]0 _* J& F9 i2 T' u- Z. kAnyone know what software can I use to convert the 2 language RMVB to 1 language AVI?$ l4 ~9 R$ S. j$ s4 u
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Thank you very much