diff -ru vlc-0.8.4-test4/modules/access/dvdnav.c vlc-0.8.4-test4-don/modules/access/dvdnav.c
--- vlc-0.8.4-test4/modules/access/dvdnav.c	2005-11-25 09:51:09.000000000 -0800
+++ vlc-0.8.4-test4-don/modules/access/dvdnav.c	2005-12-05 21:01:56.000000000 -0800
@@ -150,6 +150,7 @@
 
 static void DemuxTitles( demux_t * );
 static void ESSubtitleUpdate( demux_t * );
+static void ESAudioUpdate( demux_t * );
 static void ButtonUpdate( demux_t *, vlc_bool_t );
 
 static void ESNew( demux_t *, int );
@@ -652,7 +653,8 @@
             (dvdnav_audio_stream_change_event_t*)packet;
         msg_Dbg( p_demux, "DVDNAV_AUDIO_STREAM_CHANGE" );
         msg_Dbg( p_demux, "     - physical=%d", event->physical );
+        ESAudioUpdate( p_demux );
         /* TODO */
         break;
     }
 
@@ -960,6 +963,46 @@
     }
 }
 
+// 80 a52 , 88 dts, a0 pcm
+static void ESAudioUpdate( demux_t *p_demux )
+{
+    demux_sys_t *p_sys = p_demux->p_sys;
+    int         i_audio = dvdnav_get_active_audio_stream( p_sys->dvdnav );
+    int32_t i_title, i_part;
+
+    ButtonUpdate( p_demux, VLC_FALSE );
+
+//    dvdnav_current_title_info( p_sys->dvdnav, &i_title, &i_part );
+//    if( i_title > 0 ) return;
+
+    if( i_audio >= 0 && i_audio <= 0x8 )
+    {
+
+        ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(0xbd80 + i_audio)];
+
+        ESNew( p_demux, 0xbd80 + i_audio );
+
+        /* be sure to unselect it (reset) */
+        es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE, tk->es,
+                        (vlc_bool_t)VLC_FALSE );
+
+        /* now select it */
+        es_out_Control( p_demux->out, ES_OUT_SET_ES, tk->es );
+    }
+    else
+    {
+        for( i_audio = 0; i_audio <= 0x8; i_audio++ )
+        {
+            ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(0xbd80 + i_audio)];
+            if( tk->b_seen )
+            {
+                es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE, tk->es,
+                                (vlc_bool_t)VLC_FALSE );
+            }
+        }
+    }
+}
+
 static void ESSubtitleUpdate( demux_t *p_demux )
 {
     demux_sys_t *p_sys = p_demux->p_sys;