Make sure that you have permission to do this! Carefully read YouTube's advice on copyright issues at, http://help.Youtube.com/support/Youtube/bin/ topic.py?topic=10554
1. Find your YouTube video and copy (Ctrl+C) its web address (URL) as shown in the following screenshot:
2. Go to the web site http://mediaconverter.org.
3. Paste (Ctrl+V) that video address into the input box, as shown in the following screenshot:
4. Click on Next step.
5. Click the drop-down arrow for ---select a file type--- and choose flv (You could choose another type, such as wmv, but this one will do for us).
6. Click on Next step and ignore the next page of instructions.
7. Click on Next step again.
9. Click on the DOWNLOAD NOW link to download the video to somewhere that you can store it ready for Moodle.