diff --git a/src/chexus/json.py b/src/chexus/json.py
index ce669aa..b5a24b3 100644
--- a/src/chexus/json.py
+++ b/src/chexus/json.py
@@ -73,11 +73,8 @@ def _read_group(group: dict[str, Any], parent: Group | None = None) -> Group:
             grp.children[child["config"]["name"]] = _read_dataset(child, parent=grp)
         elif module in ["f142", 'f144']:
             grp.children[child["config"]["source"]] = _read_source(child, parent=grp)
-        elif module in ['tdct', 'ev42', 'ev44']:
-            # No useful info in these?
-            pass
         else:
-            raise ValueError(f"Unsupported module: {module}")
+            pass
     grp.attrs = _read_attrs(group)
     return grp