$ youtube-dl -b 'http://www.youtube.com/watch?v=nFicqklGuB0&feature=player_embedded'
[youtube] Setting language
[youtube] nFicqklGuB0: Downloading video info webpage
[youtube] nFicqklGuB0: Extracting video information
[download] Destination: nFicqklGuB0.mp4
[download] 18.7% of 85.78M at 7.28M/s ETA 00:09
Appears to work as expected:
$ youtube-dl -b 'http:// www.youtube. com/watch? v=nFicqklGuB0& feature= player_ embedded'
[youtube] Setting language
[youtube] nFicqklGuB0: Downloading video info webpage
[youtube] nFicqklGuB0: Extracting video information
[download] Destination: nFicqklGuB0.mp4
[download] 18.7% of 85.78M at 7.28M/s ETA 00:09