Newbie DC games copying question

Hi all,

Yesterday I copied quite a few dc games with DJ, which worked great. However, I didn't have an 80mins cd left to copy Tokyo Highway Battle 2, so I copied the entire contents of the cd to my harddrive instead. Can I still use these files to make a working copy of the game? And if so, can you tell me how? I tried to do so with Nero and Easy Cd creator, but that didn't work....

Thanks!!

Marijn