ffmpeg

[Şerban S.]

[...]  I was asked for my password.  I could not type in the space provided.  Keyboard totally worthless at that point. 

Hi!
From what you say, I can see you never used the command line.
When you are asked for password in the CLI, nothing is shown on the screen. You just type in the password, hit enter, then the procedure starts.
If you mistake it, you'll be asked again for the password.

If you want to get rid of the CLI, then use Synaptic Package Manager and select ffmpeg. It's easier.

Good luck!