How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,公仔箱論壇: d6 `  v: O' M$ m) d. o. o  Q% C9 l' l
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Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
0 x1 \) y5 {. c* c+ M: Z% D+ stvb now,tvbnow,bttvb公仔箱論壇7 {+ |; T2 J: L/ f  m) \' S! E- ]
Thank you very much