Download videos from YouTube.com
Ricardo Garcia Gonzalez has compiled a program called youtube-dl to download videos from YouTube.com.
It requires the Python interpreter, version 2.4 or later, and it’s not platform specific. It should work in your Unix box, in Windows or in Mac OS X. If you’re not a programmer then this isn’t for you – you need to follow the traditional method of downloading videos from youtube.com
I wrote a post on this but it’s in Italian. Would you like me to write one for you in English ?? Information via Raimondo.