Good free program for downloading flash movies

I know not exactly medfet, but alot of the links go to flash sites like youtube.. I found a good program that downloads the flash movies. It is called "Rocket Download Manager". You have to have the flash video playing and it usually finds it. ocassionally it says there are no files to grab, but if you clear your cache and reload the page it finds it. Also it converts the flash file to other file types like AVI or Ipod mp4.