diff --git a/rwx/sw/ytdlp/__init__.py b/rwx/sw/ytdlp/__init__.py
index 8d6ce3f..c6bae2b 100644
--- a/rwx/sw/ytdlp/__init__.py
+++ b/rwx/sw/ytdlp/__init__.py
@@ -1,20 +1,6 @@
 """YouTube DownLoad."""
 
-#  playlists
-# …
-# entries
-
-#  playlists / entries
-# title
-# id
-
-#  playlist
-# entries
-
-#  playlist / entries
-# …
-
-from abc import ABC, abstractmethod
+from datetime import datetime
 from pathlib import Path
 from typing import Any
 
@@ -26,9 +12,25 @@ from rwx.log import stream as log
 URL = "https://youtube.com"
 
 
+class Cache(Object):
+    """YouTube local cache."""
+
+    def __init__(self, root: Path) -> None:
+        self.root = root
+
+
 class Channel(Object):
-    def __init__(self, d: dict) -> None:
-        self.identifier = d["channel_id"]
+    """YouTube channel."""
+
+    def __init__(self, channel_id: str) -> None:
+        """Set objects tree.
+
+        :param channel_id: channel identifier
+        :type channel_id: str
+        """
+        d = extract_videos(channel_id)
+        # channel
+        self.uid = d["channel_id"]
         self.title = d["channel"]
         self.followers = int(d["channel_follower_count"])
         self.description = d["description"]
@@ -36,101 +38,54 @@ class Channel(Object):
         # TODO thumbnails
         self.uploader_id = d["uploader_id"]
         self.uploader = d["uploader"]
-        self.url = d["channel_url"]
-        # TODO entries
+        # videos
+        self.videos_ids = [video["id"] for video in reversed(d["entries"])]
+        # TODO filter members-only
+        # playlists
+        d = extract_playlists(channel_id)
+        self.playlists_ids = [playlist["id"] for playlist in reversed(d["entries"])]
 
+    def add_video(self, d: dict) -> dict:
+        """Add video extra info."""
+        self.video_index += 1
+        log.info(f"{self.video_index} ∕ {len(self.videos_ids)}")
+        self.videos.append(Video(d))
+        return d
 
-class Tab(Object, ABC):
-    """YouTube Tab."""
-
-    URL_ROOT = "https://youtube.com"
-
-    def __init__(self, object_id: str) -> None:
-        """Set object id.
-
-        :param object_id: object identifier
-        :type object_id: str
-        """
-        self.object_id = object_id
-        log.info(self.object_id)
-        self.url = self.get_url()
-        log.info(self.url)
-
-    def extract(self) -> dict[str, Any]:
-        """Return extracted dict.
-
-        :rtype: dict
-        """
-        yt_dl = Tab.yt_dl(self.get_options())
-        return yt_dl.extract_info(self.url, download=False)
-
-    def get_options(self) -> dict:
-        """Return options for the action.
-
-        :rtype: dict
-        """
-        return {
-            "extract_flat": True,
-            "skip_download": True,
-        }
-
-    @abstractmethod
-    def get_url(self) -> str:
-        """Return URL to access for object.
-
-        :rtype: str
-        """
-
-    @staticmethod
-    def yt_dl(opt: dict) -> YoutubeDL:
-        options = {
-            **opt,
-            "ignoreerrors": False,
-            "quiet": False,
-        }
-        log.info(options)
-        return YoutubeDL(options)
-
-
-class Playlist(Tab):
-    def __init__(self, playlist_id: str) -> None:
-        super().__init__(playlist_id)
-
-    def get_url(self) -> str:
-        return f"{Tab.URL_ROOT}/playlist?list={self.object_id}"
-
-
-class Playlists(Tab):
-    def __init__(self, channel_id: str) -> None:
-        super().__init__(channel_id)
-
-    def get_url(self) -> str:
-        return f"{Tab.URL_ROOT}/channel/{self.object_id}/playlists"
-
-
-class Video(Tab):
-    def __init__(self, video_id: str) -> None:
-        super().__init__(video_id)
-        info = self.extract()
-        self.title = info["title"]
-        self.fulltitle = info["fulltitle"]
-        self.duration = info["duration"]
-        self.categories = info["categories"]
-        self.tags = info["tags"]
-        self.description = info["description"]
-
-    def download(self) -> None:
-        Tab.yt_dl(
+    def load_videos(self) -> None:
+        """Load videos extra info."""
+        self.videos = []
+        # a
+        #for index, video_id in enumerate(self.videos_ids):
+        #    log.info(f"{index} ∕ {len(self.videos_ids)}")
+        #    self.videos.append(Video(video_id))
+        # b
+        videos_urls = [url_video(video_id) for video_id in self.videos_ids]
+        y = ytdl(
             {
-                "format": "bestvideo[ext=mp4]+bestaudio[ext=mp4]",
-                "outtmpl": "%(id)s.%(ext)s",
-                "writesubtitles": True,
-                "writethumbnail": True,
+                "process_info_hooks": [self.add_video],
+                "skip_download": True,
             },
-        ).download([self.url])
+        )
+        y.download(videos_urls)
 
-    def get_url(self) -> str:
-        return f"{Tab.URL_ROOT}/watch?v={self.object_id}"
+
+class Video(Object):
+    """YouTube video."""
+
+    def __init__(self, d: dict) -> None:
+        """Set video info.
+
+        :param d: video info
+        :type d: dict
+        """
+        self.datetime = datetime.now().strftime("%Y%m%d%H%M%S")
+        self.uid = d["id"]
+        self.fulltitle = d["fulltitle"]
+        self.duration = d["duration"]
+        self.categories = d["categories"]
+        self.tags = d["tags"]
+        self.description = d["description"]
 
 
 # channel
@@ -147,29 +102,6 @@ class Video(Tab):
 # duration
 # thumbnails
 # view_count
-class Videos(Tab):
-    def __init__(self, channel_id: str) -> None:
-        super().__init__(channel_id)
-        info = self.extract()
-        self.title = info["title"]
-        self.ids = [v["id"] for v in reversed(info["entries"])]
-        self.videos = {}
-
-    def get_url(self) -> str:
-        return f"{Tab.URL_ROOT}/channel/{self.object_id}/videos"
-
-    def load(self) -> None:
-        done = 0
-        for video_id in self.ids:
-            self.videos[video_id] = Video(video_id)
-            done += 1
-            log.info(done)
-
-    def next(self) -> str | None:
-        for video_id in self.ids:
-            if not Path(f"{video_id}.mp4").exists():
-                return video_id
-        return None
 
 
 # ╭──────────╮
@@ -196,7 +128,7 @@ def download_video(video_id: str | None) -> None:
                 "writesubtitles": True,
                 "writethumbnail": True,
             },
-        ).download([f"{URL}/watch?v={video_id}"])
+        ).download([url_video(video_id)])
 
 
 # ╭─────────╮
@@ -209,35 +141,35 @@ def extract(opt: dict[str, Any], url: str) -> dict[str, Any]:
 
     :rtype: dict
     """
-    return ytdl(
+    d = ytdl(
         {
             **opt,
             "extract_flat": True,
             "skip_download": True,
         },
     ).extract_info(url, download=False)
+    log.info(d)
+    return d
 
 
-def extract_channel(channel_id: str) -> dict:
-    """Return extracted channel dict.
+def extract_playlist(playlist_id: str) -> dict:
+    """Return extracted playlist dict.
+
+    :param playlist_id: playlist identifier
+    :type playlist_id: str
+    :rtype: dict
+    """
+    return extract({}, url_playlist(playlist_id))
+
+
+def extract_playlists(channel_id: str) -> dict:
+    """Return extracted playlists dict.
 
     :param channel_id: channel identifier
     :type channel_id: str
     :rtype: dict
     """
-    d = extract({}, f"{URL}/channel/{channel_id}")
-    return d
-
-
-def extract_videos(channel_id: str) -> dict:
-    """Return extracted videos dict.
-
-    :param channel_id: channel identifier
-    :type channel_id: str
-    :rtype: dict
-    """
-    d = extract({}, f"{URL}/channel/{channel_id}/videos")
-    return d
+    return extract({}, url_playlists(channel_id))
 
 
 def extract_video(video_id: str) -> dict:
@@ -247,8 +179,17 @@ def extract_video(video_id: str) -> dict:
     :type video_id: str
     :rtype: dict
     """
-    d = extract({}, f"{URL}/watch?v={video_id}")
-    return d
+    return extract({}, url_video(video_id))
+
+
+def extract_videos(channel_id: str) -> dict:
+    """Return extracted videos dict.
+
+    :param channel_id: channel identifier
+    :type channel_id: str
+    :rtype: dict
+    """
+    return extract({}, url_videos(channel_id))
 
 
 # ╭────────╮
@@ -306,6 +247,16 @@ def url_channel(channel_id: str) -> str:
     return f"{URL}/channel/{channel_id}"
 
 
+def url_playlist(playlist_id: str) -> str:
+    """Return playlist URL.
+
+    :param playlist_id: playlist identifier
+    :type playlist_id: str
+    :rtype: str
+    """
+    return f"{URL}/playlist?list={playlist_id}"
+
+
 def url_playlists(channel_id: str) -> str:
     """Return playlists URL.
 
@@ -316,6 +267,16 @@ def url_playlists(channel_id: str) -> str:
     return f"{url_channel(channel_id)}/playlists"
 
 
+def url_video(video_id: str) -> str:
+    """Return video URL.
+
+    :param video_id: video identifier
+    :type video_id: str
+    :rtype: str
+    """
+    return f"{URL}/watch?v={video_id}"
+
+
 def url_videos(channel_id: str) -> str:
     """Return videos URL.