diff --git a/airtime_mvc/application/configs/constants.php b/airtime_mvc/application/configs/constants.php
index 4833f7d91..1d1ed55e4 100644
--- a/airtime_mvc/application/configs/constants.php
+++ b/airtime_mvc/application/configs/constants.php
@@ -31,6 +31,7 @@ define('MDATA_KEY_TRACKNUMBER', 'track_number');
 define('MDATA_KEY_CONDUCTOR', 'conductor');
 define('MDATA_KEY_LANGUAGE', 'language');
 define('MDATA_KEY_REPLAYGAIN', 'replay_gain');
+define('MDATA_KEY_OWNER_ID', 'owner_id');
 
 define('UI_MDATA_VALUE_FORMAT_FILE', 'File');
 define('UI_MDATA_VALUE_FORMAT_STREAM', 'live stream');
diff --git a/airtime_mvc/application/models/StoredFile.php b/airtime_mvc/application/models/StoredFile.php
index 7e3bc26f7..0052d1160 100644
--- a/airtime_mvc/application/models/StoredFile.php
+++ b/airtime_mvc/application/models/StoredFile.php
@@ -125,6 +125,9 @@ class Application_Model_StoredFile
             foreach ($p_md as $mdConst => $mdValue) {
                 if (defined($mdConst)) {
                     $dbMd[constant($mdConst)] = $mdValue;
+                } else {
+                    Logging::info("Warning: using metadata that is not defined.
+                        [$mdConst] => [$mdValue]");
                 }
             }
             $this->setDbColMetadata($dbMd);
@@ -153,7 +156,6 @@ class Application_Model_StoredFile
                 if (!array_key_exists('MDATA_KEY_OWNER_ID', $p_md)) {
                     //$admins = Application_Model_User::getUsers(array('A'));
                     $admins = Application_Model_User::getUsersOfType('A');
-                    //$admins = array();
                     if (count($admins) > 0) { // found admin => pick first one
                         $owner = $admins[0];
                     }