MP3 CODECS

I have recently installed ubuntu 7.04 feisty fawn and I have had problems playing mp3 files. I don't have an internet connection at home. How and where can I dowload mp3 codecs for ubuntu and install them?

One suggestion would be the

One suggestion would be the gstreamer download pageL http://gstreamer.freedesktop.org/modules/ , but you would have to compile from source and I don't think the default Ubuntu has the necessary dependencies for that.One other solution would be to use VLC which has the proper codecs on board. The direct link to the FTP download for Ubuntu is ftp://ftp.videolan.org/pub/videolan/ubuntu/pool/vlc/0.8.6a-jb.