diff --git a/TODO b/TODO
index 2e15654..111709e 100644
--- a/TODO
+++ b/TODO
@@ -11,6 +11,8 @@ so go back to empty DB, etc.
             (file_refimg_link --> file_refimg_link needs a face_num?)
 
 ### BACKEND
+    * need to process exif data for dates, then filename match, then filesys date
+
     -- started on some basic optimisations (commit logs every 100 logs, not each log)
         - with debugs: import = 04:11, getfiledetails== 0:35:35
         - without debugs: import == 04:03, getfiledetails == 0:35:36 -- not a sig diff