this is the log
12:55:06 ImgBurn Version 2.4.4.0 started!
12:55:06 Microsoft Windows Vista Ultimate Edition (6.0, Build 6001 : Service Pack 1)
12:55:06 Total Physical Memory: 3,404,312 KB - Available: 1,947,980 KB
12:55:06 Initialising SPTI...
12:55:06 Searching for SCSI / ATAPI devices...
12:55:07 Found 2 DVD
i burnt a disc image from harddisk using Nero 7 , the disc is 6.9 GB so used a double layer disc . It copied at 4x, the process took about 17 Mins after 100% during short lead-out an error occured (power calibration error, to be precise ) and the process failed .. but the disc is able to be read , i want to verify whether all contents were copied sucessfully but th verify option in ImgBurn does not show the disc at all ( it says no disc in drive ) does it not read dual layer DVD ?