it run on CMD, the screenshot literally just text. let me help you on how to prepare
(assuming you are running windows, make sure it is x64)
1 : download and extract the main program into your working directory
2 : go to your browser, login into your r18 account
3 : install browser addon "get cookies" or similar ones with ability to export cookies with netscape format
4 : export your r18 cookies, the result could be txt file or text on your clipboard for you to paste into a blank txt file
5 : move the cookies txt file into your working directory, it would be easier to name it cookies.txt
to download a title from your library :
1 : run CMD and direct it to your working directory or open it in windows explorer then type cmd on the address bar and enter
2 : on CMD type the command :
jav-it download -c cookies.txt -o D:/ -i mide00070
where :
-c is your cookies txt file.
-o is your download directory.
-i is the title ID you want to download, it is better to use content ID found in the full movie detail instead of the dvd ID
the download will begin once you press enter