.
Thread 1 (process 8769):
#0  0x000000000042f0d6 in brasero_project_is_valid (session=0x7f1aec0221c0, 
    project=0x22c7280) at brasero-project.c:928
	valid = <value optimized out>
	status = (BraseroStatus *) 0x23b8bc0
	window = <value optimized out>
	cursor = (GdkCursor *) 0x7fff171a5cb0
	action = <value optimized out>
#1  0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#2  0x00007f1b0a557983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#3  0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007f1b0eb268cb in brasero_session_cfg_update (self=0x7f1aec0221c0)
    at brasero-session-cfg.c:1302
	source = (BraseroTrackType *) 0x23ae870
	priv = (BraseroSessionCfgPrivate *) 0x7f1aec022270
	result = BRASERO_BURN_OK
	status = (BraseroStatus *) 0x23ae870
	burner = (BraseroDrive *) 0x7fff171a6150
#6  0x00007f1b0eb27c30 in brasero_session_cfg_output_changed (
    session=0x7f1aec0221c0, former=0x7f1aec006ea0)
    at brasero-session-cfg.c:1460
	type = (BraseroTrackType *) 0x213a250
#7  0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007f1b0a55729c in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#11 0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f1b0a557983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#13 0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007f1b0ed79b94 in brasero_drive_cancel_probing (drive=0x1f4c300)
    at brasero-drive.c:234
	priv = <value optimized out>
#16 0x00007f1b0ed79d66 in brasero_drive_eject (drive=0x1f4c300, wait=0, 
    error=0x7fff171a69a8) at brasero-drive.c:279
	priv = <value optimized out>
	gvolume = <value optimized out>
	res = 1
	__PRETTY_FUNCTION__ = "brasero_drive_eject"
#17 0x00007f1b0eb0113e in brasero_burn_unlock_medias (burn=0x2397b80, 
    error=0x7fff171a69a8) at brasero-burn.c:1195
No locals.
#18 0x00007f1b0eb0429f in brasero_burn_record (burn=0x2397b80, 
    session=0x23dfb70, error=0x7fff171a69a8) at brasero-burn.c:2743
	type = (BraseroTrackType *) 0x23b8bc0
	result = BRASERO_BURN_OK
	__PRETTY_FUNCTION__ = "brasero_burn_record"
#19 0x00007f1b0eb1ceb7 in brasero_burn_dialog_run (dialog=0x2426270, 
    session=<value optimized out>) at brasero-burn-dialog.c:2131
	result = BRASERO_BURN_OK
	priv = (BraseroBurnDialogPrivate *) 0x24263b0
#20 0x0000000000451e75 in brasero_app_burn (app=0x21760a0, session=0x23dfb70)
    at brasero-app.c:701
	success = <value optimized out>
	dialog = (GtkWidget *) 0x2426270
#21 0x00000000004520ac in brasero_app_burn_image (app=0x21760a0, uri=0x0)
    at brasero-app.c:745
	session = (BraseroSessionCfg *) 0x23dfb70
	track = <value optimized out>
#22 0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#23 0x00007f1b0a557983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#24 0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#25 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#26 0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#27 0x00007f1b0a557983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#28 0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#29 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#30 0x00007f1b0c3f4af5 in gtk_real_button_released (button=0x7f1b09e5ce40)
    at /build/buildd/gtk+2.0-2.18.3/gtk/gtkbutton.c:1707
No locals.
#31 0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#32 0x00007f1b0a55729c in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#33 0x00007f1b0a558d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#34 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#35 0x00007f1b0c3f37ad in gtk_button_button_release (widget=0x7f1b09e5ce40, 
    event=0x0) at /build/buildd/gtk+2.0-2.18.3/gtk/gtkbutton.c:1599
No locals.
#36 0x00007f1b0c4a2728 in _gtk_marshal_BOOLEAN__BOXED (closure=0x1ee9d40, 
    return_value=0x7fff171a7810, n_param_values=<value optimized out>, 
    param_values=0x2435a90, invocation_hint=<value optimized out>, 
    marshal_data=0x7f1b0c3f3790)
    at /build/buildd/gtk+2.0-2.18.3/gtk/gtkmarshalers.c:84
	data1 = (gpointer) 0x22364b0
	data2 = (gpointer) 0xffffffffffffffd0
	v_return = <value optimized out>
	__PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#37 0x00007f1b0a5425ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#38 0x00007f1b0a55764d in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#39 0x00007f1b0a558bcc in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#40 0x00007f1b0a559283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#41 0x00007f1b0c5a972f in gtk_widget_event_internal (widget=0x22364b0, 
    event=0x247b100) at /build/buildd/gtk+2.0-2.18.3/gtk/gtkwidget.c:4767
	signal_num = <value optimized out>
	return_val = 0
#42 0x00007f1b0c49acd3 in IA__gtk_propagate_event (widget=0x22364b0, 
    event=0x247b100) at /build/buildd/gtk+2.0-2.18.3/gtk/gtkmain.c:2417
	tmp = (GtkWidget *) 0x0
	handled_event = 35873968
	__PRETTY_FUNCTION__ = "IA__gtk_propagate_event"
#43 0x00007f1b0c49bca3 in IA__gtk_main_do_event (event=0x247b100)
    at /build/buildd/gtk+2.0-2.18.3/gtk/gtkmain.c:1622
	event_widget = <value optimized out>
	grab_widget = (GtkWidget *) 0x22364b0
	window_group = (GtkWindowGroup *) 0x2449b80
	rewritten_event = (GdkEvent *) 0x0
	tmp_list = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__gtk_main_do_event"
#44 0x00007f1b0c110cdc in gdk_event_dispatch (source=<value optimized out>, 
    callback=<value optimized out>, user_data=<value optimized out>)
    at /build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkevents-x11.c:2369
	display = <value optimized out>
	event = <value optimized out>
#45 0x00007f1b0a0a5bbe in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#46 0x00007f1b0a0a9588 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#47 0x00007f1b0a0a99e5 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#48 0x00007f1b0c49c177 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.18.3/gtk/gtkmain.c:1218
	tmp_list = (GList *) 0x2436320
	functions = (GList *) 0x0
	init = (GtkInitFunction *) 0x21760a0
	loop = <value optimized out>
#49 0x0000000000450464 in brasero_app_run_mainwin (app=0x21760a0)
    at brasero-app.c:1691
	uapp = (UniqueApp *) 0x2436320
#50 0x00000000004201e4 in main (argc=1, argv=0x7fff171a7e88) at main.c:423
	context = <value optimized out>