VLC Plays Vobsub: idx + sub

There are some types of subtitle available for movie files, particularly for .avi file as DVDRip or DVDScr, some of them are text based meanwhile the rest are based on image. Text based subtitle file is the one you can open from text editor such as Notepad or Wordpad. Most of them have extension of .srt. Meanwhile for imaged based subtitle file actually stores the sentences in form of images. Some of them are under Vobsub category where the extensions are .idx and .sub. Because it is image based, when the subtitle is loaded by media player it might not displayed properly especially when the screen resolution is high. The effect is similar like when you have low resolution picture but you try to make the size of the picture bigger or try to zoom in too much.

I think I can say that most of media players nowadays support text based subtitle. VLC or GOM even load the text subtitle immediately when the subtitle file name is the same as the movie's and both files are stored on the same folder.

But so far, I know only VLC that supports vobsub. As in loading text subtitle, VLC also loads image based subtitle automatically when you set the file name to be the same as the movie's. However, you need to make sure that both .idx file and .sub file need to be available on the same folder. If one of them is not, VLC is unable to load the subtitle.