[CentOS] centos 5.5 - using mp3

Wed Dec 1 15:04:58 UTC 2010
Johan Scheepers <johansche at telkomsa.net>

Good day,

Been googling about this matter.
Afraid I am now confused.
Too many options..: for/against/whatever.
Some is years ago.

Kindly please a step x step manner in which to accomplish to enable mp3 
please.
Thanks
Johan