A good screen recorder?

I'd export from iMovie to your desktop in HD, and then upload to youtube.
You may also want to check this out YouTube - ‪iMovie 11 Tutorial - Advanced Exporting‬‏

Thanks for the tip. I checked out the tutorial and this encoder seems to make things appear more crispy. I downloaded it ... but I do not know how to install it .. would you know?

I've only ever used my method of exporting to the desktop before uploading, and never had anything but success there, but .....read down in the comments there, around 3/4 of the way down the page.

I have installed it now, compiling the movie now with the new plugin and will compare to your method and then let you know about the result.

Thanks so far.

No worries
May not be around by the time you get back as it's getting on here ...9.30pm in Oz, ozwest but will see how it turned out when I next log on.

Good night, ozeast, and thank you for your help. Your solution actually turned out to be the better one for my purposes ... off I go, creating tutorials now ...