Uploading MP3

I keep getting an error when I try to upload an MP3. Is there some special MP3 format that I should be using?

Hi and welcome to the rabbitworld!
Like Violet says on the site "It is best to record your MP3s with a 44100 Hz sampling rate".
What is the error mesage?

The error msg is:

"Error in sending MP3"

I'll check my sampling rate and give it another try.
Thanks for the tip.

I rip my music using windows media player, bit rate 320 Kbps and it works fine. All my music in my nabcast is ripped like this and it's ok.