Hi, thanks for article, very interesting. I have installed youtube-dl and upload, then I uploaded a mp4 file which is about 30MB in size, the very famous big_buck_bunny.mp4. It's been more than 30 minutes since i have uploaded the file, and when i executed youtube-dl -F "filename.mp4" it says:

[youtube] Yc74rOEtCFY: Downloading webpage
[youtube] Yc74rOEtCFY: Downloading video info webpage
ERROR: Yc74rOEtCFY: YouTube said: This video is unavailable.