Sorry to bother you my Chinese friends, this seems to be a right place to post some question here because I found a ground of friendly guys, i have a YouTube playback problem would some one of you help me fix it or give me a solution? When I try downloading YouTube videos with VLC downloader it say vlc is unable to open the mrl. I have no ideas and in this article (http://www.videoconverterfactory.com/tips/vlc-unable-mrl.html) as you can see, it says I have to use a third-party converter to fix it. But i do not really want to convert any videos because YouTube is MP4 which has the best compatibility with other players. Do you have any other methods which can fix the playback error?