VLC HowTo/Transcode from Flash Video format
If you have problems playing .flv files, changing them to .avi will probably fix the problem.
Precompiled windows binaries are avaliable at:
Pick the file ffmpeg-SVN-r6708-static-gpl-win32.zip
Extract the files from the .zip and copy ffmpeg.exe to your Windows directory (Windows folder), or somewhere else in your search path.
Ffmpeg.exe is command-line based, so to use it you need to open a command prompt. In the start menu pick "Run", and type
into the box and press enter. This opens a cool black box with white text. It'll say something like C:\>.
At the prompt, type
where "somewhere" is the path to the folder where you saved your files, it's probably something like
Then press enter. You can find out the path (location) of a file by right clicking on the file and selecting properties.
ffmpeg -i "your_file.flv" "your_file.avi"
and press enter. This takes "your_file.flv" as the input file and spits out "your_file.avi" as an avi file. Job done (at last!)
Close the command prompt by closing the window as normal, or typing "exit".