Need Help!?

[emptyskullz]

IVE BEEN GETTING GAMES FOR THE DREAMCAST FOR A WHILE BACK NOW. ITS BEEN A WHILE SINCE IVE BEEN DOWNLOADING THESE GAMES AND NOW I TRIED IT JUST YESTERDAY. WHAT I USED TO DO WAS USE WINRAR TO EXTRACT ALL THE FILES WHICH WERE WINRAR THEN BURN THE FILE WHICH WAS A CDI USING DISC JUGGLER OR NERO. NOW WHEN I DOWNLOAD THESE DREAMCAST GAMES THERE WOULD BE A FEW FILES THAT ARE .RAR, FEW OTHER FILES THAT ARE .PAR FILES AND ANOTHER ONE FILE WHICH IS .TMP . NOW I'M CONFUSED ON HOW TO EXTRACT THE GAME NOW BECAUSE WINRAR DOESNT DO IT ANYMORE. IT CANT READ THOSE .PAR FILES OR THAT TMP FILE. THE RESULT I WOULD GET WHEN I TRY TO EXTRACT THE .RAR FILES IS FAILURE. THE FILE IT SHOWS WHEN I TRY TO EXTRACT IT IS A .MDF FILE. I DUNNO BUT ITS NOT THE SAME BURNING THESE DREAMCAST GAMES. SO WHAT DO I DO? AND HOW DO I DO IT? IF SOMEONE WOULD HELP ME OUT!