'%(upload_date)s for the upload date (YYYYMMDD), '
'%(extractor)s for the provider (youtube, metacafe, etc), '
'%(id)s for the video id , %(playlist)s for the playlist the video is in, '
'%(upload_date)s for the upload date (YYYYMMDD), '
'%(extractor)s for the provider (youtube, metacafe, etc), '
'%(id)s for the video id , %(playlist)s for the playlist the video is in, '