oh, CDRW and DVDRW is okay, but I don't recommend to install the Drivers and Applications if they have CDR or DVDR. because the CD can be burned once one time in CDR or DVDR, so they can't burn the cd in many times. I don't like to install the drivers and the applications automatically when I make the unattended cd, because I think it is too troublesome. The software company and hardware company will update the Driver and Applications, I will see the news from them very often. SO... I will make the unattended XP CD when Microsoft release Windows XP SP2, but I am in Taiwan now, so I will make it after I go back to Canada.