Index: audio_getid3.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/audio/audio_getid3.module,v
retrieving revision 1.30
diff -u -r1.30 audio_getid3.module
--- audio_getid3.module	30 Jul 2007 19:50:31 -0000	1.30
+++ audio_getid3.module	30 Jul 2007 20:00:20 -0000
@@ -56,6 +56,9 @@
         // use array_merge so that the play count and downloadable settings aren't
         // overwritten.
         $node->audio_fileinfo = array_merge($node->audio_fileinfo, $info['fileinfo']);
+        // Use the MIME type identified by getID3 rather than the one 
+        // provided by the user's browser or our guess.
+        $node->audio_file->filemime = $info['fileinfo']['mimetype'];
       }
       break;