Can't Extract Hal 9000"s Star Wars Episode I: Cloak Of Deception on Jdownloader

I tried 6 months ago, and I tried now. But still every time I go to extract COD1080pV3 it does the same thing.

It dose this

And if I don't enter anything or if I try to enter something, it dose this.

I have done every possible thing I could think of. I have spent hours trying to get this to work.

The only thing I believe to be the problem is March I accidentally changed the file type of the first file to windows media player. I have no way of changing it back. And if re-download it, the file still remains the same. All I wanted to do was Watch this >.< 

I would like some kind of technical help on this soon please.

This might be a stupid question, but is there a password and if so do you know what it is?

If the files downloaded, you don't need to be dealing with this in jdownloader anymore. Just go to the folder that it downloaded to and try to open with winrar and obviously change the file extension back if you messed it up. 

Didn't do a thing