diff --git a/.travis.yml b/.travis.yml
index a013b34..6786e71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,17 +1,15 @@
-group: travis_latest
+dist: trusty
+sudo: required
 language: python
 cache: pip
 python:
-    - 3.6
-install:
-    - pip install flake8  # pytest  # add another testing frameworks later
-before_script:
-    # stop the build if there are Python syntax errors or undefined names
-    - flake8 . --count --select=E501,E9,F821,F822,F823,W191 --show-source --statistics
-    # exit-zero treats all errors as warnings.
-    - flake8 . --count --exit-zero --max-complexity=10 --statistics
-script:
-    - true  # pytest --capture=sys  # add other tests here
-notifications:
-    on_success: change
-    on_failure: change  # `always` will be the setting once code changes slow down
+    - "3.5"
+    - "3.6"
+    - "3.7"
+before_install:
+    - sudo apt-get update
+    - sudo apt-get install -y libmpv1
+    - pip install pyflakes
+    - pyflakes .
+install: pip install .
+script: comp -v
\ No newline at end of file
diff --git a/README.rst b/README.rst
index f3cf300..6bfd882 100644
--- a/README.rst
+++ b/README.rst
@@ -262,7 +262,7 @@ Configuration files
 -------------------
 
 If not specified by the ``--config``, (user-specific) configuration file is
-``~/.config/mpv/settings.ini``. Default configurations
+``~/.config/comp/settings.ini``. Default configurations
 are listed below::
 
    [comp]
@@ -285,7 +285,7 @@ are listed below::
    [youtube-dl]
    # Video format/quality to be passed to youtube-dl. See FORMAT SELECTION in
    # youtube-dl(1) man page for more details and descriptions.
-   format = best
+   format = bestvideo+bestaudio
 
 
 Bugs
diff --git a/comp b/comp
index f658692..1ce90d5 100755
--- a/comp
+++ b/comp
@@ -16,10 +16,9 @@
 #
 # Copyright (C) 2017  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
 
-__version__ = '0.4.5'
+__version__ = '0.4.6'
 
 import curses
-import json
 import re
 from argparse import ArgumentParser
 from collections import deque
@@ -27,14 +26,12 @@ from configparser import ConfigParser
 from curses.ascii import ctrl, alt
 from functools import reduce
 from gettext import bindtextdomain, gettext as _, textdomain
-from os import makedirs
-from os.path import abspath, dirname, expanduser, expandvars
+from os.path import expanduser
 from threading import Thread
 from traceback import print_exception
 
 from mpv import MPV
 from pkg_resources import resource_filename
-from youtube_dl import YoutubeDL
 
 from omp import extract_info, Omp
 
@@ -332,7 +329,8 @@ config.read(args.config)
 mode = config.get('comp', 'play-mode', fallback='play-current')
 mpv_args = dict(config['mpv']) if 'mpv' in config else {}
 if args.vo is not None: mpv_args['vo'] = args.vo
-ytdlf = args.format or config.get('youtube-dl', 'format', fallback='best')
+ytdlf = args.format or config.get('youtube-dl', 'format',
+                                  fallback='bestvideo+bestaudio')
 
 with Comp(entries, json_file, mode, mpv_args, ytdlf) as comp:
     while True:
diff --git a/omp/omp.py b/omp/omp.py
index dbf5869..1a0a35c 100644
--- a/omp/omp.py
+++ b/omp/omp.py
@@ -24,17 +24,14 @@ from collections import deque
 from gettext import bindtextdomain, gettext as _, textdomain
 from itertools import cycle
 from os import makedirs
-from os.path import abspath, dirname, expanduser, expandvars, isfile
+from os.path import abspath, dirname, expanduser, expandvars
 from random import choice
 from sys import exc_info
-from time import gmtime, sleep, strftime
-from urllib import request
 
-from youtube_dl import YoutubeDL
 from pkg_resources import resource_filename
-from mpv import MPV, MpvFormat
+from mpv import MPV
 
-from .ie import JSON_KEYS, extract_info
+from .ie import JSON_KEYS
 
 # Init gettext
 bindtextdomain('omp', resource_filename('omp', 'locale'))
diff --git a/settings.ini b/settings.ini
index 9fc966a..dcade2c 100644
--- a/settings.ini
+++ b/settings.ini
@@ -18,4 +18,4 @@ play-mode = play-current
 [youtube-dl]
 # Video format/quality to be passed to youtube-dl. See FORMAT SELECTION in
 # youtube-dl(1) man page for more details and descriptions.
-format = best
+format = bestvideo+bestaudio
diff --git a/setup.py b/setup.py
index c41c14f..fbd0aee 100755
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ with open('README.rst') as f:
 
 setup(
     name='comp',
-    version='0.4.5',
+    version='0.4.6',
     description=('Curses Omni Media Player'),
     long_description=long_description,
     url='https://github.com/McSinyx/comp',
diff --git a/test/playlist.json b/test/playlist.json
index f3c68da..2a41d7d 100644
--- a/test/playlist.json
+++ b/test/playlist.json
@@ -83,6 +83,13 @@
     "selected": false,
     "title": "David Banner - Play (Dirty version)"
   },
+  {
+    "duration": "00:04:14",
+    "error": false,
+    "filename": "https://www.youtube.com/watch?v=NmCFY1oYDeM",
+    "selected": false,
+    "title": "John Legend - Love Me Now (Video)"
+  },
   {
     "duration": "00:03:55",
     "error": false,
@@ -105,7 +112,7 @@
     "title": "Best Goat Song Versions Compilation Ever! (HD)"
   },
   {
-    "duration": "00:00:00",
+    "duration": "00:04:03",
     "error": false,
     "filename": "https://youtu.be/dMK_npDG12Q",
     "selected": false,
@@ -147,7 +154,7 @@
     "title": "Can't Stop the SUSE - (Can't Stop the Feeling parody)"
   },
   {
-    "duration": "00:00:00",
+    "duration": "00:04:28",
     "error": false,
     "filename": "https://youtu.be/SYRlTISvjww",
     "selected": false,
@@ -161,7 +168,7 @@
     "title": "What Does the Chameleon Say?   (Ylvis - What Does the Fox Say parody)"
   },
   {
-    "duration": "00:00:00",
+    "duration": "00:03:46",
     "error": false,
     "filename": "https://youtu.be/M9bq_alk-sw",
     "selected": false,
@@ -175,7 +182,7 @@
     "title": "Linus Said - Music Parody (Momma Said)"
   },
   {
-    "duration": "00:00:00",
+    "duration": "00:03:58",
     "error": false,
     "filename": "https://youtu.be/4VrhlyIgo3M",
     "selected": false,