diff --git a/devine/core/tracks/track.py b/devine/core/tracks/track.py
index 740b98d..615d4d9 100644
--- a/devine/core/tracks/track.py
+++ b/devine/core/tracks/track.py
@@ -4,6 +4,7 @@
 import re
 import shutil
 import subprocess
+from collections import defaultdict
 from copy import copy
 from enum import Enum
 from functools import partial
@@ -42,7 +43,7 @@ def __init__(
         drm: Optional[Iterable[DRM_T]] = None,
         edition: Optional[str] = None,
         downloader: Optional[Callable] = None,
-        data: Optional[dict] = None,
+        data: Optional[Union[dict, defaultdict]] = None,
         id_: Optional[str] = None,
     ) -> None:
         if not isinstance(url, (str, list)):
@@ -63,8 +64,8 @@ def __init__(
             raise TypeError(f"Expected edition to be a {str}, not {type(edition)}")
         if not isinstance(downloader, (Callable, type(None))):
             raise TypeError(f"Expected downloader to be a {Callable}, not {type(downloader)}")
-        if not isinstance(data, (dict, type(None))):
-            raise TypeError(f"Expected data to be a {dict}, not {type(data)}")
+        if not isinstance(data, (dict, defaultdict, type(None))):
+            raise TypeError(f"Expected data to be a {dict} or {defaultdict}, not {type(data)}")
 
         invalid_urls = ", ".join(set(type(x) for x in url if not isinstance(x, str)))
         if invalid_urls:
@@ -93,7 +94,7 @@ def __init__(
         self.drm = drm
         self.edition: str = edition
         self.downloader = downloader
-        self.data = data or {}
+        self.data = defaultdict(dict, **(data or {}))
 
         if self.name is None:
             lang = Language.get(self.language)