Download Flash video file from any video site?

You can use a HTTP sniffer to grab the URL of the FLV file that the Flash Video player calls. I've outlined it here: superuser.com/questions/28241/where-to-find-a-youtube-hd-video-downloader-bookmarklet-google-chrome/28537#28537

"TubeMaster++.

I made an animated GIF for you to illustrate:"

"There is free version of ImTOO DVD Ripper and it works great.

I use Internet Download Manger."

"If you're using Internet Explorer, search for *.FLV in 'temporary internet files'.

With Firefox it's a bit trickier. The default cache location is:

C:\Documents and Settings\\Local Settings\Application Data\Mozilla\Firefox\Profiles\xxx.default\Cache

Now you won't find FLV files in this folder (in fact, NO file in this folder has an extension). But if you sort by size and check the date/time -stamp, you'll get a fair idea of what you're looking for. Copy the file to another location and add the extension FLV."

FlashGot addon for Firefox is even better that DownlodHelper in my opinion, because it allows setting custom downloaders like IDM (win) or Axel (linux) for different actions. Not limited to flv.