Amazon s3 Wordpress Plugin

Hi,

Im having some issues with the Amazon s3 plug. http://tantannoodles.com/toolkit/wordpress-s3/ and maybe someone can help.

I can upload everything but mp3 files with this plugin for some reason. I thought it was the max_upload in php.ini but that is set to 256MB

I also cant really find any documentation on this plugin online.

does anyone have any other recommendations?

Cheers!