unable to download

[smremde]

$ youtube-dl --version
2013.08.15

$ youtube-dl http://www.youtube.com/watch?v=IcrbM1l_BoI
[youtube] Setting language
[youtube] IcrbM1l_BoI: Downloading video webpage
[youtube] IcrbM1l_BoI: Downloading video info webpage
[youtube] IcrbM1l_BoI: Extracting video information
[youtube] IcrbM1l_BoI: Encrypted signatures detected.
ERROR: unable to download video

[RingoTheDog]

youtube-dl.py -v http://www.youtube.com/watch?v=Gw7gNf_9njs
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', 'http://www.youtube.com/watch?v=Gw7gNf_9njs']
[debug] youtube-dl version 2013.08.15
[debug] Python version 2.7.1 - Windows-7-6.1.7601-SP1
[debug] Proxy map: {}
[youtube] Setting language
[youtube] Gw7gNf_9njs: Downloading video webpage
[youtube] Gw7gNf_9njs: Downloading video info webpage
[youtube] Gw7gNf_9njs: Extracting video information
[youtube] Gw7gNf_9njs: Encrypted signatures detected.
[youtube] encrypted signature length 85 (43.41), itag 44, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 35, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 43, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 34, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 18, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 5, html5 player vfl2LOvBh
[youtube] encrypted signature length 85 (43.41), itag 36, html5 player vfl2LOvBh

[youtube] encrypted signature length 85 (43.41), itag 17, html5 player vfl2LOvBh

ERROR: unable to download video
Traceback (most recent call last):
File "C:\Transmogrifier\youtube-dl.py\youtube_dl\YoutubeDL.py", line 573, in download videos = self.extract_info(url)
File "C:\Transmogrifier\youtube-dl.py\youtube_dl\YoutubeDL.py", line 327, in extract_info return self.process_ie_result(ie_result, download=download)
File "C:\Transmogrifier\youtube-dl.py\youtube_dl\YoutubeDL.py", line 410, in process_ie_result for r in ie_result['entries']
File "C:\Transmogrifier\youtube-dl.py\youtube_dl\YoutubeDL.py", line 357, in process_ie_result self.process_info(ie_result)
File "C:\Transmogrifier\youtube-dl.py\youtube_dl\YoutubeDL.py", line 550, in process_info raise UnavailableVideoError(err)
UnavailableVideoError: HTTP Error 403: Forbidden

[smremde]

This is a duplicate of others relating to length 85 i believe...