diff --git a/__init__.py b/__init__.py
index 2ebffbe..e254139 100755
--- a/__init__.py
+++ b/__init__.py
@@ -2,7 +2,7 @@ bl_info = {
     "name": "Render Toolbox",
     "description": "Perform checks and setup outputs",
     "author": "Samuel Bernou",
-    "version": (0, 3, 0),
+    "version": (0, 3, 1),
     "blender": (3, 0, 0),
     "location": "View3D",
     "warning": "",
diff --git a/fn.py b/fn.py
index 9b6a7dc..1f9b326 100755
--- a/fn.py
+++ b/fn.py
@@ -187,6 +187,19 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
     excludes = excludes or {}
     remap_names = remap_names or {}
 
+
+    tech_file_format = file_format.copy() if file_format else None
+
+    if tech_file_format:
+        ## TODO: Set to EXR if provioded is not ERX or EXR multilayer ?
+        # ->> if tech_file_format.get('file_format')) is not in ('OPEN_EXR', 'OPEN_EXR_MULTILAYER'): ...
+
+        ## Force 32 bit
+        tech_file_format['color_depth'] = '32'
+        ## Enforce a lossless format if provided is not
+        if (codec := tech_file_format.get('exr_codec')) and codec not in ['ZIP','PIZ','RLE','ZIPS']:
+            tech_file_format['exr_codec'] = 'PIZ'
+
     for node in node_list:
         exclusions = excludes.get(node.name) or []
         
@@ -226,6 +239,7 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
             if fo_regular and fo_regular not in created_nodes:
                 created_nodes.append(fo_regular)
 
+
         y_offset += -22 * len(regular_outputs) - node_margin
         # Create and connect tech outputs with 32-bit depth if split_tech_passes is True
         if tech_outputs:
@@ -233,7 +247,7 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
 
             fo_tech = create_and_connect_file_output(
                 node, tech_outputs, None, out_name, base_path,
-                out_base, scene, remap_names, file_format,
+                out_base, scene, remap_names, tech_file_format,
                 suffix='tech/', color_depth='32',
                 location_offset=(500, y_offset)
             )
@@ -250,7 +264,7 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
     
             fo_crypto = create_and_connect_file_output(
                 node, crypto_outputs, None, out_name, base_path,
-                out_base, scene, remap_names, file_format,
+                out_base, scene, remap_names, tech_file_format,
                 suffix='cryptos/', color_depth='32',
                 location_offset=(500, y_offset)
             )