mit open courseware download failure

[gaming-hacker]

hello,

trying to get videos from
http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video

youtube-dl --verbose http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video/
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', 'http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.08.23
[debug] Python version 2.7.8 - Darwin-12.5.0-x86_64-i386-64bit
[debug] Proxy map: {}
[generic] video: Requesting header
WARNING: Falling back on generic information extractor.
[generic] video: Downloading webpage
[generic] video: Extracting information
ERROR: Unsupported URL: http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video/; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.
Traceback (most recent call last):
File "/Users/glen/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 520, in extract_info
ie_result = ie.extract(url)
File "/Users/glen/bin/youtube-dl/youtube_dl/extractor/common.py", line 170, in extract
return self._real_extract(url)
File "/Users/glen/bin/youtube-dl/youtube_dl/extractor/generic.py", line 784, in _real_extract
raise ExtractorError('Unsupported URL: %s' % url)
ExtractorError: Unsupported URL: http://www.ll.mit.edu/workshops/education/videocourses/antennas/lecture1/video/; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update

[phihag]

Thank you for the report. Support for camtasia videos has been added in youtube-dl 2014.08.24. Type youtube-dl -U (or git pull, can't tell from the path) to update. Note that there are actually two videos, meant to be played side-by-side.