Sorry to change the subject, but how can i download and install the windows 2000 XP 2003 Unattented dvd boot cd OS??? theres 5 parts (all rar files).. i tried putting one onto disc but i never worked

said disc was empty. Do i have to extract then all?? if so thats going to use alot of disc space, i only have 7 gig left lol-_-
So i am just wondering what exactly i do with the rar files. The reason i don't know is because the things i have downloaded from urban in the past has all been an ISO file, so i just had to burn that straight to a disc :P