Details about how to make a translation to your language you can read at 

http://ac3filter.net/guides/how_to_translate

List of current translations
============================
English (built-in)
cze: czech by Alesh
dut: Dutch by Ernst Klamer
fre: French by GEKA2
fin: Finnish by Jesse
fre: French by GEKA2
ger: German by Filico
heb: Hebrew by PhistucK UnRuleD
hun: Hungarian by Sziladi Zsolt
ind: Indonesian by Nicholas N.E
ita: Italian by Gioxy
kor: Korean by starcodec
pol: Polish by Lukasz Pasternak
pt_BR: Portuguese (Brazilian) by ReX
rus: Russian by Valex
slo: Slovak by Artam
spa: Spanish by Ferny
zh@Simplified: Chinese (Simplified) by FSYX
zh@Traditional: Chinese (Traditional by AlexW
