diff -rup audiofield/audiofield.module audiofield.new/audiofield.module
--- audiofield/audiofield.module	2010-11-15 06:30:54.000000000 -0600
+++ audiofield.new/audiofield.module	2011-01-13 19:29:30.000000000 -0600
@@ -239,17 +239,12 @@ function audiofield_get_player($audio_ur
   
   $audio_players=audiofield_players();
 	
-  switch ($op) {
-    case 'mp3':
-	  $mp3_player_id=variable_get('audiofield_audioplayer', 0);
-	  $mp3_player=$audio_players[$mp3_player_id];
-	  return call_user_func($mp3_player['callback'], $base_path.$mp3_player['path'],$audio_url);
-    default:
-	  $other_player_id=variable_get('audiofield_audioplayer_'.$op, 'nanogong');
-	  $other_player=$audio_players[$other_player_id];
-	  return call_user_func($other_player['callback'], $base_path.$other_player['path'],$audio_url);
-      break;
+  $variable_name = 'audiofield_audioplayer' . ($op == 'mp3' ? '' : "_$op");
+  $player = $audio_players[variable_get($variable_name, 'nanogong')];
+  if (empty($player)) {
+    return "<embed height='15' src='$audio_url' autostart='false'></embed>";
   }
+  return call_user_func($player['callback'], $base_path.$player['path'], $audio_url);
 }
 
 /**