Youtube video can't be downloaded

I'm using:

- Firefox 19.0.2
- DownThemAll
- the current version of FlashGot

Put The Needle on the Record - it's ~80 minutes long.

I reloaded the page three times - there's no icon so there's no way for me to download it.

I've never experienced this sort of problem before. I downloaded a couple of other Youtube videos a few minutes ago. I'll edit this post if I have more "undownloadable" videos.

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Edit #1

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Edit

Hmm... do some Youtube videos have copy protection?

These download sites didn't work:

http://www.music-clips.net/v/v1IicrMQm1o/mp4/
http://dirpy.com/studio/v1IicrMQm1o#video-options-div

And I didn't use java-based sites. There's no way I'm using those.