Index: functions.php
===================================================================
--- functions.php	(revision 15380)
+++ functions.php	(working copy)
@@ -2460,7 +2460,9 @@
 		'bmp' => 'image/bmp',
 		'tif|tiff' => 'image/tiff',
 		'ico' => 'image/x-icon',
-		'asf|asx|wax|wmv|wmx' => 'video/asf',
+		'asf|asx' => 'video/x-ms-asf',
+		'wax' => 'audio/x-ms-wax',
+		'wmv' => 'video/x-ms-wmv',
 		'avi' => 'video/avi',
 		'divx' => 'video/divx',
 		'flv' => 'video/x-flv',
@@ -2479,7 +2481,7 @@
 		'ogg|oga' => 'audio/ogg',
 		'ogv' => 'video/ogg',
 		'mid|midi' => 'audio/midi',
-		'wma' => 'audio/wma',
+		'wma' => 'audio/x-ms-wma',
 		'mka' => 'audio/x-matroska',
 		'mkv' => 'video/x-matroska',
 		'rtf' => 'application/rtf',