diff --git a/mne_bids/io.py b/mne_bids/io.py
index 28f3b196f..83e70a662 100644
--- a/mne_bids/io.py
+++ b/mne_bids/io.py
@@ -90,11 +90,13 @@ def _read_raw(raw_fname, electrode=None, hsp=None, hpi=None, config=None,
         raw = io.read_raw_cnt(raw_fname, montage=montage)
 
     # MEF3 format
+    # only iEEG
     elif ext == '.mef3':
         raise ValueError("MEF3 format not yet supported. ",
                          "Please contact the MNE-BIDS developers.")
 
     # Neurodata without borders .nwb format
+    # only iEEG
     elif ext == '.nwb':
         raise ValueError("Neurodata without borders .nwb format not yet ",
                          " supported. Please contact the MNE-BIDS developers.")
diff --git a/mne_bids/tests/test_mne_bids.py b/mne_bids/tests/test_mne_bids.py
index 8ccd1d369..26e0b9c97 100644
--- a/mne_bids/tests/test_mne_bids.py
+++ b/mne_bids/tests/test_mne_bids.py
@@ -289,3 +289,46 @@ def test_nwb():
         raw_to_bids(subject_id=subject_id, session_id=session_id, run=run,
                     task=task, acquisition=acq, raw_file=raw_fname,
                     output_path=output_path, overwrite=True, kind='ieeg')
+
+
+def test_vhdr_ieeg():
+    """Test raw_to_bids conversion for BrainVision data (ieeg)."""
+    output_path = _TempDir()
+    data_path = op.join(base_path, 'brainvision', 'tests', 'data')
+    raw_fname = op.join(data_path, 'test.vhdr')
+
+    raw_to_bids(subject_id=subject_id, session_id=session_id, run=run,
+                task=task, acquisition=acq, raw_file=raw_fname,
+                output_path=output_path, overwrite=True, kind='ieeg')
+
+    cmd = ['bids-validator', '--bep010', output_path]
+    run_subprocess(cmd, shell=shell)
+
+
+def test_edf_ieeg():
+    """Test raw_to_bids conversion for European Data Format data (ieeg)."""
+    output_path = _TempDir()
+    data_path = op.join(testing.data_path(), 'EDF')
+    raw_fname = op.join(data_path, 'test_reduced.edf')
+
+    raw_to_bids(subject_id=subject_id, session_id=session_id, run=run,
+                task=task, acquisition=acq, raw_file=raw_fname,
+                output_path=output_path, overwrite=True, kind='ieeg')
+
+    cmd = ['bids-validator', '--bep010', output_path]
+    run_subprocess(cmd, shell=shell)
+
+
+def test_set_ieeg():
+    """Test raw_to_bids conversion for EEGLAB data (ieeg)."""
+    # standalone .set file
+    output_path = _TempDir()
+    data_path = op.join(testing.data_path(), 'EEGLAB')
+    raw_fname = op.join(data_path, 'test_raw_onefile.set')
+
+    raw_to_bids(subject_id=subject_id, session_id=session_id, run=run,
+                task=task, acquisition=acq, raw_file=raw_fname,
+                output_path=output_path, overwrite=True, kind='ieeg')
+
+    cmd = ['bids-validator', '--bep010', output_path]
+    run_subprocess(cmd, shell=shell)