The K-Lite Codec Pack is a collection of DirectShow filters, VFW/ACM codecs, and tools. Codecs and DirectShow filters are needed for encoding and decoding audio and video formats. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your audio and movie files.
With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even several less common formats.

RealPlayer has always enabled you to play RealAudio (*.ra) and RealMedia (*.ram) files.

• Download videos from thousands of Web sites with just one click
• Build your own video library and playlists
• Play all major audio and video formats
• Flash Video support
• DVD, SVCD, VCD burning and video recording

VLC media player is a highly portable multimedia player for various audio and video formats as well as DVDs, VCDs, and various streaming protocols without external codec or program.