请问怎样用subtitile的file (sub) ??

alantct

i hv a movie file, Lelio.Po.Po.2010.DVDRip.XviD.ONiE and another two files (seprate) is the sub  & idx file. may i know how to use or combine the video file so that i can watch it with subtitle ?  公仔箱論壇, R" i  G- m$ c

5 @1 M5 v# J, X! _tvb now,tvbnow,bttvbthanks in advance.