How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,www2.tvboxnow.com- o) |3 j5 U- e# u/ ~$ |$ y/ i  [

* c2 V0 x0 W# f5 q0 w  A' f% HTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
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Thank you very much