How to cut a MP3 in half?

[Tom Betz]

Wade Smart wrote:
> I have to upload an mp3 but its to large (and I didnt create it).
> Is there a way to cut it in half and then upload it?

Like this guy: <http://linuxathome.com/?m=200404>
I use and recommend MP3DirectCut to edit MP3 files, even though it's a
Windows app.  It runs fine under wine, and in this case it has the
advantage over Audacity that it doesn't do any conversion of the MP3
file (hence retaining the audio quality of the original), it simply
edits it directly.

If there is a native *nix equivalent, I haven't seen it.