MP3 won't play

[ZULU]

Hi all
I've got an annoying problem.

I have downloaded *Digital_Planet_-_22_02_2011_p00dt2rc_default.mp3* from 
BBC World Service.
The file is 12.1MB.
When I double click the file, it appears to open normally (as mp3's should) 
with *Winamp* but nothing plays.
No Digital Planet MP3 files ever play....
Every other Mp3 file that I download (from Radio 4) with get_iplayer <x's 
fingers> works fine!

What is going on here?

I am downloading with Webpvr Manager and using WindowsXP Pro.

Roger (I'm very visually impaired)