HOW TO BACKUP DC GAMES ?

I HAVE JUST GOT MYSELF A DREAMCAST BUT WOULD LIKE TO KNOW IF YOU CAN MAKE BACKUP COPYS OF THE GAMES , I HAVE DONE THIS WITH PSX GAMES USEING WINONCD3.7 AND CDRWIN ,I PUT TOMB RAIDER 5 IN TO COPY IT AND IT BUT IT ONLY HAD 12MB OF DATA ,AND IS THERE A WEBSITE THAT TELL YOU IF GAMES ARE COPY PROTECTED THANKS.