Hello. There is no donation needed — your "Thank you" is quite enough.

Hello.give the links that you couldn't download.
What is your browser?Name & version?
What is the version of SaveFrom.net helper?
You can get to know the version using the link...
http://en.savefrom.net/user.php?info=1

Hello.
What is your browser?Name & version?
What is the version of SaveFrom.net helper?
You can get to know the version using the link...
http://en.savefrom.net/user.php?info=1

We can not change the container.
Most references are given to direct directly to youtube.

Links to forums: https://productforums.google.com/forum/#!topic/youtube/ynR4wcbNBW8
http://forum.doom9.org/showthread.php?t=171061