diff --git a/bids2openminds/report.py b/bids2openminds/report.py
index a8caf5f..8357f13 100644
--- a/bids2openminds/report.py
+++ b/bids2openminds/report.py
@@ -7,6 +7,7 @@ def create_report(dataset, dataset_version, collection, dataset_description, inp
     file_bundle_number = 0
     files_number = 0
     behavioral_protocols_numbers = 0
+    content_type_list = ""
 
     for item in collection:
         if item.type_.endswith("Subject"):
@@ -26,6 +27,10 @@ def create_report(dataset, dataset_version, collection, dataset_description, inp
 
             behavioral_protocols_numbers += 1
 
+        if item.type_.endswith("ContentType"):
+
+            content_type_list += f"{item.name}\n"
+
     experimental_approaches_list = ""
     if dataset_version.experimental_approaches is not None:
         for approache in dataset_version.experimental_approaches:
@@ -98,6 +103,10 @@ def create_report(dataset, dataset_version, collection, dataset_description, inp
 ------------------------------------------
 {data_types_list}
 
+Detected content types:
+------------------------------------------
+{content_type_list}
+
 Detected techniques:
 ------------------------------------------
 {techniques_list}
diff --git a/bids2openminds/utility.py b/bids2openminds/utility.py
index de02208..7311a9d 100644
--- a/bids2openminds/utility.py
+++ b/bids2openminds/utility.py
@@ -174,4 +174,4 @@ def detect_nifti_version(file_name, extension, file_size):
             elif sizeof_hdr == nii2_sizeof_hdr:
                 return ContentType.by_name("application/vnd.nifti.2")
 
-    return None
+    return ContentType.by_name("application/vnd.nifti.1")