Barden

im trying to back up my halo 3 game but i get this error: I 16:55:14 ImgBurn Version 2.4.2.0 started! I 16:55:14 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3) I 16:55:14 Total Physical Memory: 1,048,044 KB - Available: 543,648 KB I 16:55:14 Initialising SPTI... I 16:55:14 Searching for SCSI / ATAPI devices... I 16:55:14 Found 1 DVD