libervisco's links...

This is a much more convenient way to download flash videos without needing a flash plugin than using youtube-dl and works with a lot more sites than YouTube.

Downloading a YouTube video you usually get a "get_video" file so you should rename it into something like "video-name.flv" where "video-name" is whatever name you wish to identify it by and .flv is just an extension so your system can know what it is.

Enjoy.