.
Thread 4 (Thread 3466):
#0  0x00007f72ba87f56d in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f72be12d612 in ?? () from /usr/lib/libgthread-2.0.so.0
#2  0x00007f72bbaf3eef in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f72bbb42ff0 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f72bbb41b54 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f72ba87b3ba in start_thread () from /lib/libpthread.so.0
#6  0x00007f72ba5e81bd in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()
.
Thread 3 (Thread 3444):
#0  0x00007f72ba5a9e31 in nanosleep () from /lib/libc.so.6
#1  0x00007f72ba5a9c57 in sleep () from /lib/libc.so.6
#2  0x00007f72a64e8e77 in ?? () from /usr/lib/libbrasero-media.so.0
#3  0x00007f72bbb41b54 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f72ba87b3ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f72ba5e81bd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 2 (Thread 3468):
#0  0x00007f72ba87f2e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f72a60b6e38 in ?? () from /usr/lib/libbrasero-utils.so.0
#2  0x00007f72bbb41b54 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f72ba87b3ba in start_thread () from /lib/libpthread.so.0
#4  0x00007f72ba5e81bd in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()
.
Thread 1 (Thread 3309):
#0  0x00007f72bbb09bfa in g_hash_table_lookup ()
   from /usr/lib/libglib-2.0.so.0
#1  0x00007f72a674fe99 in ?? () from /usr/lib/libbrasero-burn.so.0
#2  0x00007f72a60b8644 in ?? () from /usr/lib/libbrasero-utils.so.0
#3  0x00007f72bbb189fe in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#4  0x00007f72bbb1c3c8 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f72bbb1c825 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#6  0x00007f72bd364f8b in gtk_dialog_run () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x00007f72a697c0f8 in ?? ()
   from /usr/lib/nautilus/extensions-2.0/libnautilus-brasero-extension.so
#8  0x00007f72a697c389 in ?? ()
   from /usr/lib/nautilus/extensions-2.0/libnautilus-brasero-extension.so
#9  0x00007f72bc1f162e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x00007f72bc207846 in ?? () from /usr/lib/libgobject-2.0.so.0
#11 0x00007f72bc208c8e in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#12 0x00007f72bc209213 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#13 0x00007f72bc1f162e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#14 0x00007f72bc207846 in ?? () from /usr/lib/libgobject-2.0.so.0
#15 0x00007f72bc208c8e in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#16 0x00007f72bc209213 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#17 0x00007f72bd3327a5 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00007f72bc1f162e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#19 0x00007f72bc207155 in ?? () from /usr/lib/libgobject-2.0.so.0
#20 0x00007f72bc208c8e in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#21 0x00007f72bc209213 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0x00007f72bd330fe7 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#23 0x00007f72bd3f6203 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00007f72bc1f162e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#25 0x00007f72bc207518 in ?? () from /usr/lib/libgobject-2.0.so.0
#26 0x00007f72bc208b4e in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#27 0x00007f72bc209213 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#28 0x00007f72bd516bff in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#29 0x00007f72bd3ed1d4 in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#30 0x00007f72bd3ee2f3 in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#31 0x00007f72bd044e4c in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#32 0x00007f72bbb189fe in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#33 0x00007f72bbb1c3c8 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0x00007f72bbb1c825 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#35 0x00007f72bd3ee827 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#36 0x00000000004429fa in ?? ()
#37 0x00007f72ba5205e6 in __libc_start_main () from /lib/libc.so.6
#38 0x000000000042f6b9 in ?? ()
#39 0x00007fff0cdeddb8 in ?? ()
#40 0x000000000000001c in ?? ()
#41 0x0000000000000001 in ?? ()
#42 0x00007fff0cdeeb5f in ?? ()
#43 0x0000000000000000 in ?? ()