It uses the award-winning MPlayer as engine, so it's able to play the most known video and audio formats without the need of external codecs, avi, mkv, ogm, mpeg, vob, 3gp, asf, mov, wmv, mp3, ogg. You can also play and download Youtube videos. Special care have been taken with subtitles. It supports srt, sub, ssa, embedded subtitles in Matroska files, DVD subtitles. It can also search and download subtitles from opensubtitles.org. <p> One of the most interesting features of SMPlayer which it remembers the settings of all files you play. So you start to watch a movie but you have to leave. don't worry, when you open that movie again it will resume at the same point you left it, and with the same settings, audio track, subtitles, volume.