How do I extract the files from Dreamcast cd with winrar

[Mr X]

The Gdrom shows just three notepad files and I cant open them, Please anyone give me a run down on what exactly to do to copy a dreamcast game and how to do it. Its driving me mad. the software i have downloaded is.

Winrar, Disk Juggler, Iso Buster. Can i use Eze cd Creator 4.02 to burn it. Thanks if theirs anyone out there to give me a hand.