diff --git a/beets/autotag/match.py b/beets/autotag/match.py
index 9870f157f..ba657cedb 100644
--- a/beets/autotag/match.py
+++ b/beets/autotag/match.py
@@ -462,7 +462,7 @@ def tag_item(item, search_artist=None, search_title=None,
     candidates = {}
 
     # First, try matching by MusicBrainz ID.
-    trackids = search_ids or filter(None, [item.mb_trackid])
+    trackids = search_ids or [t for t in [item.mb_trackid] if t]
     if trackids:
         for trackid in trackids:
             log.debug(u'Searching for track ID: {0}', trackid)
diff --git a/beets/config_default.yaml b/beets/config_default.yaml
index 4c12c3df0..fa77a82dc 100644
--- a/beets/config_default.yaml
+++ b/beets/config_default.yaml
@@ -23,6 +23,7 @@ import:
     group_albums: no
     pretend: false
     search_ids: []
+    duplicate_action: ask
 
 clutter: ["Thumbs.DB", ".DS_Store"]
 ignore: [".*", "*~", "System Volume Information", "lost+found"]
diff --git a/beets/importer.py b/beets/importer.py
index 4209a4831..072c2ad5b 100644
--- a/beets/importer.py
+++ b/beets/importer.py
@@ -331,7 +331,7 @@ class ImportSession(object):
         been imported in a previous session.
         """
         if self.is_resuming(toppath) \
-           and all(map(lambda p: progress_element(toppath, p), paths)):
+           and all([progress_element(toppath, p) for p in paths]):
             return True
         if self.config['incremental'] \
            and tuple(paths) in self.history_dirs:
@@ -1327,7 +1327,29 @@ def resolve_duplicates(session, task):
             log.debug(u'found duplicates: {}'.format(
                 [o.id for o in found_duplicates]
             ))
-            session.resolve_duplicate(task, found_duplicates)
+
+            # Get the default action to follow from config.
+            duplicate_action = config['import']['duplicate_action'].as_choice({
+                u'skip': u's',
+                u'keep': u'k',
+                u'remove': u'r',
+                u'ask': u'a',
+            })
+            log.debug(u'default action for duplicates: {0}', duplicate_action)
+
+            if duplicate_action == u's':
+                # Skip new.
+                task.set_choice(action.SKIP)
+            elif duplicate_action == u'k':
+                # Keep both. Do nothing; leave the choice intact.
+                pass
+            elif duplicate_action == u'r':
+                # Remove old.
+                task.should_remove_duplicates = True
+            else:
+                # No default action set; ask the session.
+                session.resolve_duplicate(task, found_duplicates)
+
             session.log_choice(task, True)
 
 
diff --git a/beetsplug/info.py b/beetsplug/info.py
index 29bff7a29..d29d9b45f 100644
--- a/beetsplug/info.py
+++ b/beetsplug/info.py
@@ -230,7 +230,7 @@ def make_key_filter(include):
     def filter_(data):
         filtered = dict()
         for key, value in data.items():
-            if any(map(lambda m: m.match(key), matchers)):
+            if any([m.match(key) for m in matchers]):
                 filtered[key] = value
         return filtered
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 64b582450..b350381af 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -8,6 +8,8 @@ New features:
 
 * A new ``--force`` option for :ref:`remove-cmd` allows removal of items
   without prompting beforehand. :bug:`2042`
+* A new importer configuration :ref:`duplicate_action` controls how
+  duplicate albums or tracks treated in import task. :bug:`185`
 
 Some fixes for Windows:
 
diff --git a/docs/reference/config.rst b/docs/reference/config.rst
index 4ca54652a..0892aaa30 100644
--- a/docs/reference/config.rst
+++ b/docs/reference/config.rst
@@ -550,6 +550,17 @@ with the ``-a`` flag to the :ref:`import-cmd` command.)
 
 Default: ``yes``.
 
+.. _duplicate_action:
+
+duplicate_action
+~~~~~~~~~~~~~~~~
+
+Either ``skip``, ``keep``, ``remove``, or ``ask``. Controls how duplicates
+are treated in import task. "skip" means that new item(album or track) will be
+skiped; "keep" means keep both old and new items; "remove" means remove old
+item; "ask" means the user should be prompted for the action each time.
+The default is ``ask``.
+
 
 .. _musicbrainz-config: