Existing users, 
• Using Safari, open the page with the YouTube video you want to snatch.
• While the video is loading, open the Activity window (command-shift-A).
• The video will be the largest file downloading.
• Click on it, and copy it (command-c).
• Open the Downloads window (command-shift-L).
• Paste the item you just copied (command-V)
This will download the video to your specified download location as "video.flv". After it downloads, you may wish to rename it.
This file is playable by Quicktime - right click (or option-click), and select "Open With..." If Quicktime Player isn't listed, select "Other...", and navigate to Quicktime Player in your Applications folder. To avoid having to do this in the future, check the "Always open with" box.
You're done, with no additional software needing to be installed!
Get Tube
For downloading video or audio from YouTube.
Version: 4.01
Or, try this...
Feedback Type: Commentary
Contributed by: Richard Samul Wednesday, July 01 2009 @ 09:31 AM PDT
Product Platform: MacOSX
Used Product For: Have Not Tried
Recommend Product: NO
Comments
Or, try this... - sukayser
This didn't work at all for me. QT said it wasn't a movie, and iTunes wouldn't accept it. (On a G4/450, running OS 10.4.11),Incidentally, the Activity Window gets opened with Option-Command-A, not Shift-Command-A.
Susan Kayser
Wednesday, August 12 2009 @ 08:48 AM PDT
But it don't works with iTunes - GianMarco Tavazzani
At the end of the day I have to use TubeTV with his sometime strange behaviour!Incredible that still now no one browser can do it with some plug in!
Reply to This
Sunday, July 05 2009 @ 01:11 PM PDT