Index: mplayer.c
===================================================================
--- mplayer.c   (revision 19947)
+++ mplayer.c   (working copy)
@@ -5099,6 +5101,7 @@ 
     case MP_CMD_SWITCH_AUDIO : {
         int current_id = demuxer->audio->id;
         int v = demuxer_switch_audio(demuxer, cmd->args[0].v.i);
+        v = demuxer->audio->id;
         if(v > -1 && v < MAX_A_STREAMS && v != current_id) {
           sh_audio_t *sh2;
           uninit_player(INITED_AO | INITED_ACODEC);
@@ -5109,6 +5112,10 @@
             reinit_audio_chain();
           } 
         } 
+        if (v > -1 && v < MAX_A_STREAMS && demuxer->a_streams[v])
+          v = ((sh_audio_t *)demuxer->a_streams[v])->aid;
+       else
+          v = -2;
         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_TRACK=%d\n", v);
     } break;
     case MP_CMD_RUN : {