diff --git a/app.py b/app.py
index b2496b1..0f3fecf 100644
--- a/app.py
+++ b/app.py
@@ -1534,36 +1534,42 @@ def r_storage_info():
     devs = usb_devices()
     result = []
 
-    def _du_entry(mount_path):
+    def _du_for_dev(dev):
+        mp, owned = ensure_mount(dev)
+        if not mp:
+            return dict(mounted=False, total=None, used=None, free=None, pct=None)
         try:
-            du = shutil.disk_usage(mount_path)
+            du = shutil.disk_usage(mp)
             return dict(mounted=True, total=du.total, used=du.used, free=du.free,
                         pct=round(du.used / du.total * 100) if du.total else 0)
         except Exception:
             return dict(mounted=False, total=None, used=None, free=None, pct=None)
+        finally:
+            if owned:
+                subprocess.run(['umount', mp], capture_output=True)
 
     for sp in _resolve_source_ports(cfg):
         dev = next((d for d in devs if d['usb_port'] == sp['port']), None)
         entry = dict(type='source', label=sp.get('label') or f"Port {sp['port']}",
                      port=sp['port'], mounted=False,
                      total=None, used=None, free=None, pct=None)
-        if dev and dev.get('mount'):
-            entry.update(_du_entry(dev['mount']))
+        if dev:
+            entry.update(_du_for_dev(dev))
         result.append(entry)
 
     if cfg.get('dest_type') == 'internal':
         entry = dict(type='dest',
                      label=cfg.get('internal_dest_label') or 'Interner Speicher',
                      port='__internal__')
-        entry.update(_du_entry(str(INTERNAL_DEST_DIR)))
+        entry.update(_du_for_dev({'internal': True}))
         result.append(entry)
     elif cfg.get('dest_port'):
         dev = next((d for d in devs if d['usb_port'] == cfg['dest_port']), None)
         entry = dict(type='dest', label=cfg.get('dest_label') or f"Port {cfg['dest_port']}",
                      port=cfg['dest_port'], mounted=False,
                      total=None, used=None, free=None, pct=None)
-        if dev and dev.get('mount'):
-            entry.update(_du_entry(dev['mount']))
+        if dev:
+            entry.update(_du_for_dev(dev))
         result.append(entry)
 
     return jsonify(result)
diff --git a/version.txt b/version.txt
index 01c08cf..3116087 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.0.68
+1.0.69