diff --git a/ordigi/collection.py b/ordigi/collection.py
index 21d6f17..9bff2f0 100644
--- a/ordigi/collection.py
+++ b/ordigi/collection.py
@@ -143,6 +143,9 @@ class FPath:
                 # Delete separator
                 if re.search('^[-_ .]', part):
                     part = part[1:]
+                if part != stem:
+                    # We only want to match first result
+                    break
         elif item == 'date':
             date = metadata['date_media']
             # early morning photos can be grouped with previous day
diff --git a/ordigi/utils.py b/ordigi/utils.py
index 0a59f41..5a54913 100644
--- a/ordigi/utils.py
+++ b/ordigi/utils.py
@@ -69,7 +69,7 @@ def get_date_regex(user_regex=None):
             # regex to match date format type %Y%m%d, %y%m%d, %d%m%Y,
             # etc...
             'a': re.compile(
-                r'.*[_-]?(?P<year>\d{4})[_-]?(?P<month>\d{2})[_-]?(?P<day>\d{2})[_-]?(?P<hour>\d{2})[_-]?(?P<minute>\d{2})[_-]?(?P<second>\d{2})'
+                r'[-_./](?P<year>\d{4})[-_.]?(?P<month>\d{2})[-_.]?(?P<day>\d{2})[-_.]?(?P<hour>\d{2})[-_.]?(?P<minute>\d{2})[-_.]?(?P<second>\d{2})'
             ),
             'b': re.compile(
                 r'[-_./](?P<year>\d{4})[-_.]?(?P<month>\d{2})[-_.]?(?P<day>\d{2})[-_./]'