How to convert the Dual Language RMVB to 1 Language AVI

hahakl

Hi,4 u" Y3 n, E7 K/ |) ?4 S  t5 ^
公仔箱論壇. s  X. g; W! d; g  Y
Anyone know what software can I use to convert the 2 language RMVB to 1 language AVI?
; [% O/ P1 R# b2 u6 D* D/ o2 _/ V公仔箱論壇1 F- o' Z2 z4 T- n2 B7 N8 n6 a
Thank you very much