Right now the following features are available in SMPlayer:
- Display two subtitles at once. See video: http://www.youtube.com/watch?v=XHh2bf-8dPI
- Play videos from many video sites, not only youtube. Detailed info here:
http://blog.smplayer.info/support-for-v ... y-youtube/
- Go backwards frame by frame.
- Template for screenshots. Now the screenshots filenames can have the title of the video, playback time and much more. Detailed info about the format of the template here (look for screenshot-template).