SMPlayer is a handy application software based on MPlayer, so it can play all audio formats and most known video formats without installing additional codecs: avi, mkv, ogm, mpeg , vob, 3gp, asf, mov, wmv, mp3, ogg. 

Especially, it supports subtitles: srt, sub, ssa, embedded subtitles in Matroska files. You can select font size even colors for the subtitles. 

One of the most interesting features of SMPlayer is it remembers the settings of all files you play. So when you're watching a movie that had to stop, do not worry when it detects that section, as the program will automatically open the video you are watching bad before with the settings: monitoring sound, subtitles, volume.