MP3s sans bitrate

[gfrost]

I've just downloaded (successfully) two MP3 files, neither of which will open in iTunes, nor via Peak or anything else that normally reads MP3s. Peak's error message suggests the file may not contain audio data. The file sizes would seem to match what you'd expect from an MP3, the file is recognized and labeled by the system as one, but not by any audio software.

I notice in both cases that no bitrate at all is showing up in the Limewire main window, which strikes me as a bit odd.

This is on a Mac running OSX 10.4.11

Anybody encountered this problem, and is there a fix?