SMPlayer: An alternative to VLC Media Player
SMPlayer is a very good alternative to VLC media player. It is faster than VLC and can play almost all video and audio formats. You don’t need to download and install any external codecs.
Play all formats: It can play almost all known video and audio formats with its built-in codecs. You don’t need to find and install third party codecs.
Play and Download YouTube videos: You can search, play and even download YouTube videos from SMPlayer. You can download YouTube videos with the quality you choose. Multiple vidoes can be downloaded at a time.
Subtitles: Can search and download subtitles
Multi language support: Available in more than 30 languages
Multi platform: Available in Windows and Linux
Lightweight and Fast: Loads very fast
You can download SMPlayer from here: http://smplayer.sourceforge.net/en/downloads
There is a download link for Windows users. Ubuntu users can run the command present in the above download link, OR can directly install it from Ubuntu Software Center. And, there is a link to contributed packages for other Linux distributions.
Happy video and audio playing :-)