Apparently some youtube videos undownloadable?

[brassplyer]

I noticed a video that can't be downloaded. Tried Realplayer and various Firefox add-ons. None of them work, though they work on other videos. I assume there's some kind of coding they add that blocks all downloaders?

[Baldrick]

I would try some more standalone downloaders like 4k video downloader and masstube.

But they might have some extra protection.

[mike20021969]

I noticed a video that can't be downloaded.

Which video?

[Alex_ander]

An example:
https://www.youtube.com/watch?v=N-svzoOgDkM&list=PLBAC590267E243ACF

4k video downloader refuses to start downloading it and Chris PC Pro defines zero file size (not to mention various FF plugins).

[mike20021969]

https://www.youtube.com/watch?v=N-svzoOgDkM

Yes, a protected stream.
I've only seen this done before on YouTube channels from TV broadcasters like Channel 4 or Channel 5 (both UK) - normally when they provide full TV programmes for viewing/catch up purposes.

[pandy]

I can advise IMHO best add-on http://www.cys-audiovideodownloader.com/ or give a chance to https://www.videohelp.com/software/youtube-dl . If one of the above not work then you may need special approach.

[mike20021969]

YouTube-dl wont work.

[Hoser Rob]

They're changing protocols all the time to prevent people downloading their streams, and developers can't stay on top of it all the time.

AFAIK the only way to be able to download some of this stuff is to get your hands dirty and do it by hand.