Index: functions.php
===================================================================
--- functions.php	(revision 12462)
+++ functions.php	(working copy)
@@ -2222,8 +2222,8 @@
  */
 function wp_ext2type( $ext ) {
 	$ext2type = apply_filters('ext2type', array(
-		'audio' => array('aac','ac3','aif','aiff','mp1','mp2','mp3','m3a','m4a','m4b','ogg','ram','wav','wma'),
-		'video' => array('asf','avi','divx','dv','mov','mpg','mpeg','mp4','mpv','ogm','qt','rm','vob','wmv', 'm4v'),
+		'audio' => array('aac','ac3','aif','aiff','mp1','mp2','mp3','m3a','m4a','m4b','ogg','oga','ram','wav','wma'),
+		'video' => array('asf','avi','divx','dv','m4v','mov','mpg','mpeg','mp4','mpv','ogm','ogv','qt','rm','vob','wmv'),
 		'document' => array('doc','docx','pages','odt','rtf','pdf'),
 		'spreadsheet' => array('xls','xlsx','numbers','ods'),
 		'interactive' => array('ppt','pptx','key','odp','swf'),
@@ -2290,6 +2290,7 @@
 		'flv' => 'video/x-flv',
 		'mov|qt' => 'video/quicktime',
 		'mpeg|mpg|mpe' => 'video/mpeg',
+		'ogv' => 'video/ogg',
 		'txt|c|cc|h' => 'text/plain',
 		'rtx' => 'text/richtext',
 		'css' => 'text/css',
@@ -2298,7 +2299,7 @@
 		'mp4|m4v' => 'video/mp4',
 		'ra|ram' => 'audio/x-realaudio',
 		'wav' => 'audio/wav',
-		'ogg' => 'audio/ogg',
+		'ogg|oga' => 'audio/ogg',
 		'mid|midi' => 'audio/midi',
 		'wma' => 'audio/wma',
 		'rtf' => 'application/rtf',