There are many formats of audio and video .Each format has its own quality and importance.But how to play them.Huge number of media players available on the internet offer special features ,some of them really work but most are scam.
Here are the most efficient media players.(click on name to download)
Real Player REAL PLAYER DESIGN
Winamp WINAMP DESIGN
VLC VLC DESIGN
Itunes I TUNES DESIGN
Media Jukebox MEDIA JUKEBOX DESIGN
JET AUDIO DESIGN