diff --git a/notebooks/Convert ns-ALEX Becker-Hickl files to Photon-HDF5.ipynb b/notebooks/Convert ns-ALEX Becker-Hickl files to Photon-HDF5.ipynb
index d8e7aa0..e4ecf62 100644
--- a/notebooks/Convert ns-ALEX Becker-Hickl files to Photon-HDF5.ipynb	
+++ b/notebooks/Convert ns-ALEX Becker-Hickl files to Photon-HDF5.ipynb	
@@ -386,8 +386,8 @@
    },
    "outputs": [],
    "source": [
-    "h5file.create_group('/', 'user')\n",
-    "bh_group = h5file.create_group('/user', 'becker_hickl')"
+    "h5file.create_group('/', 'user', title=b'A custom group.')\n",
+    "bh_group = h5file.create_group('/user', 'becker_hickl', title=b'Full metadata from original .SET file.')"
    ]
   },
   {
diff --git a/notebooks/Convert ns-ALEX HT3 files to Photon-HDF5.ipynb b/notebooks/Convert ns-ALEX HT3 files to Photon-HDF5.ipynb
index 0583b0c..df09e1f 100644
--- a/notebooks/Convert ns-ALEX HT3 files to Photon-HDF5.ipynb	
+++ b/notebooks/Convert ns-ALEX HT3 files to Photon-HDF5.ipynb	
@@ -368,11 +368,11 @@
    "outputs": [],
    "source": [
     "h5file = d['_data_file']\n",
-    "h5file.create_group('/', 'user')\n",
-    "pq_group = h5file.create_group('/user', 'picoquant')\n",
+    "h5file.create_group('/', 'user', title=b'A custom group.')\n",
+    "pq_group = h5file.create_group('/user', 'picoquant', title=b'Full metadata from original .HT3 file.')\n",
     "for key in meta: \n",
     "    if np.size(meta[key]) > 0:\n",
-    "        h5file.create_table(pq_group, key, obj=meta[key])"
+    "        h5file.create_table(pq_group, key, obj=meta[key], title=phc.hdf5._EMPTY)"
    ]
   },
   {