MP3's are highly compressed, CD-quality, sound files. The MP3 has become the most frequently used unofficial file format, which can be downloaded from the Internet. The only prerequisite you need to play an MP3 is a program like Winamp or Microsoft Windows Media Player. MP3 has allowed the Internet users to download any songs (in MP3 format) in a matter of minutes without paying any sort of money, which is highly deplorable. This compressed MP3 technology is buzzing up all round on the Internet. There is roughly no music site that you can go to where an MP3 format is not on offer.