sweety

hi im trying to do a ISO on my dvd disc but i seem to be always getting error. here is the log I 20:42:02 ImgBurn Version 2.5.0.0 started! I 20:42:02 Microsoft Windows Vista Home Premium Edition (6.0, Build 6001 : Service Pack 1) I 20:42:02 Total Physical Memory: 2,091,156 KB - Available: 992,356 KB I 20:42:02 Initialising SPTI... I 20:42:02 Searching for SCSI / ATAPI devices... I 20:42:02 Found 1 DVD