SMPlayer is a free media player for Windows and Linux with built-in codecs that can play virtually all video and audio formats. It doesn't need any external codecs. Just install SMPlayer and you'll be able to play all formats without the hassle to find and install codec packs.
More about SMPlayer
SMPlayer is a graphical user interface (GUI) for the award-winning MPlayer, which is capable of playing almost all known video and audio formats. But apart from providing access for the most common and useful options of MPlayer, SMPlayer adds other interesting features like the possibility to play Youtube videos or download subtitles. Learn more.
You may also be interested in...
A highly portable and popular multimedia player for multiple audio and video formats.
Versatile media player which can cover various types of container format such as VCD, DVD, AVI, WMV among others
UMPlayer is the media player that fills all your needs.