diff --git a/src/you_get/extractor.py b/src/you_get/extractor.py
index 594b908e..332440dd 100644
--- a/src/you_get/extractor.py
+++ b/src/you_get/extractor.py
@@ -206,7 +206,7 @@ class VideoExtractor():
                           output_dir=kwargs['output_dir'],
                           merge=kwargs['merge'],
                           av=stream_id in self.dash_streams)
-            if not kwargs['caption']:
+            if 'caption' not in kwargs or not kwargs['caption']:
                 print('Skipping captions.')
                 return
             for lang in self.caption_tracks:
diff --git a/src/you_get/extractors/bilibili.py b/src/you_get/extractors/bilibili.py
index 122dea0b..aecb072c 100644
--- a/src/you_get/extractors/bilibili.py
+++ b/src/you_get/extractors/bilibili.py
@@ -127,7 +127,7 @@ def bilibili_download(url, output_dir='.', merge=True, info_only=False, **kwargs
 
     if re.match(r'https?://bangumi\.bilibili\.com/', url):
         # quick hack for bangumi URLs
-        episode_id = r1(r'data-current-episode-id="(\d+)"', html)
+        episode_id = r1(r'first_ep_id = "(\d+)"', html)
         cont = post_content('http://bangumi.bilibili.com/web_api/get_source',
                             post_data={'episode_id': episode_id})
         cid = json.loads(cont)['result']['cid']
diff --git a/src/you_get/extractors/embed.py b/src/you_get/extractors/embed.py
index fc4015c4..3bdb924c 100644
--- a/src/you_get/extractors/embed.py
+++ b/src/you_get/extractors/embed.py
@@ -2,6 +2,7 @@ __all__ = ['embed_download']
 
 from ..common import *
 
+from .bilibili import bilibili_download
 from .iqiyi import iqiyi_download_by_vid
 from .le import letvcloud_download_by_vu
 from .netease import netease_download
@@ -42,6 +43,11 @@ netease_embed_patterns = [ '(http://\w+\.163\.com/movie/[^\'"]+)' ]
 
 vimeo_embed_patters = [ 'player\.vimeo\.com/video/(\d+)' ]
 
+"""
+check the share button on http://www.bilibili.com/video/av5079467/
+"""
+bilibili_embed_patterns = [ 'static\.hdslb\.com/miniloader\.swf.*aid=(\d+)' ]
+
 
 def embed_download(url, output_dir = '.', merge = True, info_only = False ,**kwargs):
     content = get_content(url, headers=fake_headers)
@@ -78,6 +84,12 @@ def embed_download(url, output_dir = '.', merge = True, info_only = False ,**kwa
         found = True
         vimeo_download_by_id(url, title=title, output_dir=output_dir, merge=merge, info_only=info_only)
 
+    aids = matchall(content, bilibili_embed_patterns)
+    for aid in aids:
+        found = True
+        url = 'http://www.bilibili.com/video/av%s/' % aid
+        bilibili_download(url, output_dir=output_dir, merge=merge, info_only=info_only)
+
     if not found:
         raise NotImplementedError(url)
 
diff --git a/src/you_get/extractors/lizhi.py b/src/you_get/extractors/lizhi.py
index 56dbf756..65988a9f 100644
--- a/src/you_get/extractors/lizhi.py
+++ b/src/you_get/extractors/lizhi.py
@@ -4,37 +4,55 @@ __all__ = ['lizhi_download']
 import json
 from ..common import *
 
-def lizhi_download_playlist(url, output_dir = '.', merge = True, info_only = False, **kwargs):
-    # like this http://www.lizhi.fm/#/31365/
-    #api desc: s->start l->length band->some radio
-    #http://www.lizhi.fm/api/radio_audios?s=0&l=100&band=31365
-    band_id = match1(url,r'#/(\d+)')
-    #try to get a considerable large l to reduce html parsing task.
-    api_url = 'http://www.lizhi.fm/api/radio_audios?s=0&l=65535&band='+band_id
-    content_json = json.loads(get_content(api_url))
-    for sound in content_json:
-        title = sound["name"]
-        res_url = sound["url"]
-        songtype, ext, size = url_info(res_url,faker=True)
-        print_info(site_info, title, songtype, size)
-        if not info_only:
-            #no referer no speed!
-            download_urls([res_url], title, ext, size, output_dir, merge=merge ,refer = 'http://www.lizhi.fm',faker=True)    
-    pass
+# radio_id: e.g. 549759 from http://www.lizhi.fm/549759/
+#
+# Returns a list of tuples (audio_id, title, url) for each episode
+# (audio) in the radio playlist. url is the direct link to the audio
+# file.
+def lizhi_extract_playlist_info(radio_id):
+    # /api/radio_audios API parameters:
+    #
+    # - s: starting episode
+    # - l: count (per page)
+    # - band: radio_id
+    #
+    # We use l=65535 for poor man's pagination (that is, no pagination
+    # at all -- hope all fits on a single page).
+    #
+    # TODO: Use /api/radio?band={radio_id} to get number of episodes
+    # (au_cnt), then handle pagination properly.
+    api_url = 'http://www.lizhi.fm/api/radio_audios?s=0&l=65535&band=%s' % radio_id
+    api_response = json.loads(get_content(api_url))
+    return [(ep['id'], ep['name'], ep['url']) for ep in api_response]
 
-def lizhi_download(url, output_dir = '.', merge = True, info_only = False, **kwargs):
-    # url like http://www.lizhi.fm/#/549759/18864883431656710
-    api_id = match1(url,r'#/(\d+/\d+)')
-    api_url = 'http://www.lizhi.fm/api/audio/'+api_id
-    content_json = json.loads(get_content(api_url))
-    title = content_json["audio"]["name"]
-    res_url = content_json["audio"]["url"]
-    songtype, ext, size = url_info(res_url,faker=True)
-    print_info(site_info, title, songtype, size)
+def lizhi_download_audio(audio_id, title, url, output_dir='.', info_only=False):
+    filetype, ext, size = url_info(url)
+    print_info(site_info, title, filetype, size)
     if not info_only:
-        #no referer no speed!
-        download_urls([res_url], title, ext, size, output_dir, merge=merge ,refer = 'http://www.lizhi.fm',faker=True)    
+        download_urls([url], title, ext, size, output_dir=output_dir)
 
+def lizhi_download_playlist(url, output_dir='.', info_only=False, **kwargs):
+    # Sample URL: http://www.lizhi.fm/549759/
+    radio_id = match1(url,r'/(\d+)')
+    if not radio_id:
+        raise NotImplementedError('%s not supported' % url)
+    for audio_id, title, url in lizhi_extract_playlist_info(radio_id):
+        lizhi_download_audio(audio_id, title, url, output_dir=output_dir, info_only=info_only)
+
+def lizhi_download(url, output_dir='.', info_only=False, **kwargs):
+    # Sample URL: http://www.lizhi.fm/549759/18864883431656710/
+    m = re.search(r'/(?P<radio_id>\d+)/(?P<audio_id>\d+)', url)
+    if not m:
+        raise NotImplementedError('%s not supported' % url)
+    radio_id = m.group('radio_id')
+    audio_id = m.group('audio_id')
+    # Look for the audio_id among the full list of episodes
+    for aid, title, url in lizhi_extract_playlist_info(radio_id):
+        if aid == audio_id:
+            lizhi_download_audio(audio_id, title, url, output_dir=output_dir, info_only=info_only)
+            break
+    else:
+        raise NotImplementedError('Audio #%s not found in playlist #%s' % (audio_id, radio_id))
 
 site_info = "lizhi.fm"
 download = lizhi_download
diff --git a/src/you_get/extractors/magisto.py b/src/you_get/extractors/magisto.py
index 2a53be02..b2e8e502 100644
--- a/src/you_get/extractors/magisto.py
+++ b/src/you_get/extractors/magisto.py
@@ -3,15 +3,19 @@
 __all__ = ['magisto_download']
 
 from ..common import *
+import json
 
 def magisto_download(url, output_dir='.', merge=True, info_only=False, **kwargs):
     html = get_html(url)
-
-    title1 = r1(r'<meta name="twitter:title" content="([^"]*)"', html)
-    title2 = r1(r'<meta name="twitter:description" content="([^"]*)"', html)
-    video_hash = r1(r'http://www.magisto.com/video/([^/]+)', url)
-    title = "%s %s - %s" % (title1, title2, video_hash)
-    url = r1(r'<source type="[^"]+" src="([^"]*)"', html)
+    
+    video_hash = r1(r'video\/([a-zA-Z0-9]+)', url)
+    api_url = 'https://www.magisto.com/api/video/{}'.format(video_hash)
+    content = get_html(api_url)
+    data = json.loads(content)
+    title1 = data['title']
+    title2 = data['creator']
+    title = "%s - %s" % (title1, title2)
+    url = data['video_direct_url']
     type, ext, size = url_info(url)
 
     print_info(site_info, title, type, size)
diff --git a/src/you_get/processor/ffmpeg.py b/src/you_get/processor/ffmpeg.py
old mode 100644
new mode 100755
index a8599e52..da7c076c
--- a/src/you_get/processor/ffmpeg.py
+++ b/src/you_get/processor/ffmpeg.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import logging
 import os.path
 import subprocess
 from ..util.strings import parameterize
@@ -21,11 +22,26 @@ def get_usable_ffmpeg(cmd):
         return None
 
 FFMPEG, FFMPEG_VERSION = get_usable_ffmpeg('ffmpeg') or get_usable_ffmpeg('avconv') or (None, None)
-LOGLEVEL = ['-loglevel', 'quiet']
+if logging.getLogger().isEnabledFor(logging.DEBUG):
+    LOGLEVEL = ['-loglevel', 'info']
+else:
+    LOGLEVEL = ['-loglevel', 'quiet']
 
 def has_ffmpeg_installed():
     return FFMPEG is not None
 
+# Given a list of segments and the output path, generates the concat
+# list and returns the path to the concat list.
+def generate_concat_list(files, output):
+    concat_list_path = output + '.txt'
+    concat_list_dir = os.path.dirname(concat_list_path)
+    with open(concat_list_path, 'w', encoding='utf-8') as concat_list:
+        for file in files:
+            if os.path.isfile(file):
+                relpath = os.path.relpath(file, start=concat_list_dir)
+                concat_list.write('file %s\n' % parameterize(relpath))
+    return concat_list_path
+
 def ffmpeg_concat_av(files, output, ext):
     print('Merging video parts... ', end="", flush=True)
     params = [FFMPEG] + LOGLEVEL
@@ -52,17 +68,9 @@ def ffmpeg_convert_ts_to_mkv(files, output='output.mkv'):
 def ffmpeg_concat_mp4_to_mpg(files, output='output.mpg'):
     # Use concat demuxer on FFmpeg >= 1.1
     if FFMPEG == 'ffmpeg' and (FFMPEG_VERSION[0] >= 2 or (FFMPEG_VERSION[0] == 1 and FFMPEG_VERSION[1] >= 1)):
-        concat_list = open(output + '.txt', 'w', encoding="utf-8")
-        for file in files:
-            if os.path.isfile(file):
-                concat_list.write("file %s\n" % parameterize(file))
-        concat_list.close()
-
-        params = [FFMPEG] + LOGLEVEL
-        params.extend(['-f', 'concat', '-safe', '-1', '-y', '-i'])
-        params.append(output + '.txt')
-        params += ['-c', 'copy', output]
-
+        concat_list = generate_concat_list(files, output)
+        params = [FFMPEG] + LOGLEVEL + ['-y', '-f', 'concat', '-safe', '-1',
+                                        '-i', concat_list, '-c', 'copy', output]
         if subprocess.call(params) == 0:
             os.remove(output + '.txt')
             return True
@@ -115,18 +123,10 @@ def ffmpeg_concat_flv_to_mp4(files, output='output.mp4'):
     print('Merging video parts... ', end="", flush=True)
     # Use concat demuxer on FFmpeg >= 1.1
     if FFMPEG == 'ffmpeg' and (FFMPEG_VERSION[0] >= 2 or (FFMPEG_VERSION[0] == 1 and FFMPEG_VERSION[1] >= 1)):
-        concat_list = open(output + '.txt', 'w', encoding="utf-8")
-        for file in files:
-            if os.path.isfile(file):
-                # for escaping rules, see:
-                # https://www.ffmpeg.org/ffmpeg-utils.html#Quoting-and-escaping
-                concat_list.write("file %s\n" % parameterize(file))
-        concat_list.close()
-
-        params = [FFMPEG] + LOGLEVEL + ['-f', 'concat', '-safe', '-1', '-y', '-i']
-        params.append(output + '.txt')
-        params += ['-c', 'copy', '-bsf:a', 'aac_adtstoasc', output]
-
+        concat_list = generate_concat_list(files, output)
+        params = [FFMPEG] + LOGLEVEL + ['-y', '-f', 'concat', '-safe', '-1',
+                                        '-i', concat_list, '-c', 'copy',
+                                        '-bsf:a', 'aac_adtstoasc', output]
         subprocess.check_call(params)
         os.remove(output + '.txt')
         return True
@@ -162,16 +162,10 @@ def ffmpeg_concat_mp4_to_mp4(files, output='output.mp4'):
     print('Merging video parts... ', end="", flush=True)
     # Use concat demuxer on FFmpeg >= 1.1
     if FFMPEG == 'ffmpeg' and (FFMPEG_VERSION[0] >= 2 or (FFMPEG_VERSION[0] == 1 and FFMPEG_VERSION[1] >= 1)):
-        concat_list = open(output + '.txt', 'w', encoding="utf-8")
-        for file in files:
-            if os.path.isfile(file):
-                concat_list.write("file %s\n" % parameterize(file))
-        concat_list.close()
-
-        params = [FFMPEG] + LOGLEVEL + ['-f', 'concat', '-safe', '-1', '-y', '-i']
-        params.append(output + '.txt')
-        params += ['-c', 'copy', '-bsf:a', 'aac_adtstoasc', output]
-
+        concat_list = generate_concat_list(files, output)
+        params = [FFMPEG] + LOGLEVEL + ['-y', '-f', 'concat', '-safe', '-1',
+                                        '-i', concat_list, '-c', 'copy',
+                                        '-bsf:a', 'aac_adtstoasc', output]
         subprocess.check_call(params)
         os.remove(output + '.txt')
         return True
diff --git a/tests/test.py b/tests/test.py
index 0fa2979a..020455b0 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -18,9 +18,6 @@ class YouGetTests(unittest.TestCase):
     def test_magisto(self):
         magisto.download("http://www.magisto.com/album/video/f3x9AAQORAkfDnIFDA", info_only=True)
 
-    def test_mixcloud(self):
-        mixcloud.download("http://www.mixcloud.com/DJVadim/north-america-are-you-ready/", info_only=True)
-
     def test_youtube(self):
         youtube.download("http://www.youtube.com/watch?v=pzKerr0JIPA", info_only=True)
         youtube.download("http://youtu.be/pzKerr0JIPA", info_only=True)