Calculator Hangs at 99% in ImgBurn

[SeaBoundRhino]

I am completely knew to this whole DVD Burning thing. So pardon my inexperience... I want to back up a DVD that i just bought. I encoded the DVD with DVD Flick and then opened up ImgBurn. I added the file and the labels and that went just fine. But when i hit the calculator button it goes and just stays at 99% and then nothing happens

here's the log

I 11:17:11 ImgBurn Version 2.5.0.0 started!
I 11:17:11 Microsoft Windows Vista Home Basic Edition (6.0, Build 6002 : Service Pack 2)
I 11:17:11 Total Physical Memory: 2,093,960 KB - Available: 937,620 KB
W 11:17:11 SPTD can have a detrimental effect on drive performance.
I 11:17:11 Initialising SPTI...
I 11:17:11 Searching for SCSI / ATAPI devices...
I 11:17:12 Found 1 DVD-ROM/CD-RW and 4 BD-ROM/HD DVD-ROMs!
I 11:17:47 Operation Started!
I 11:17:47 Building Image Tree...
I 11:17:47 Checking Directory Depth...
I 11:17:47 Calculating Totals...
I 11:17:47 Preparing Image...
I 11:17:47 Checking Path Length...
I 11:17:47 Contents: 11 Files, 2 Folders
I 11:17:47 Content Type: DVD Video
I 11:17:47 Data Type: MODE1/2048
I 11:17:47 File System(s): ISO9660, UDF (1.02)
I 11:17:47 Volume Label: Hangover
I 11:17:47 IFO/BUP 32K Padding: Enabled
I 11:17:47 Region Code: 1, 2, 3, 4, 5, 6, 7, 8
I 11:17:47 TV System: NTSC
I 11:17:47 Size: 4,648,411,136 bytes
I 11:17:47 Sectors: 2,269,732
I 11:17:47 Image Size: 4,648,992,768 bytes
I 11:17:47 Image Sectors: 2,270,016
I 11:17:47 Operation Successfully Completed! - Duration: 00:00:00
I 11:22:23 Operation Started!
I 11:22:23 Building Image Tree...
I 11:22:23 Checking Directory Depth...
I 11:22:23 Calculating Totals...
I 11:22:23 Preparing Image...
I 11:22:23 Checking Path Length...
I 11:22:23 Contents: 11 Files, 2 Folders
I 11:22:23 Content Type: DVD Video
I 11:22:23 Data Type: MODE1/2048
I 11:22:23 File System(s): ISO9660, UDF (1.02)
I 11:22:23 Volume Label: Hangover
I 11:22:23 IFO/BUP 32K Padding: Enabled
I 11:22:23 Region Code: 1, 2, 3, 4, 5, 6, 7, 8
I 11:22:23 TV System: NTSC
I 11:22:23 Size: 4,648,411,136 bytes
I 11:22:23 Sectors: 2,269,732
I 11:22:24 Image Size: 4,648,992,768 bytes
I 11:22:24 Image Sectors: 2,270,016
I 11:22:24 Operation Successfully Completed! - Duration: 00:00:00

[cynthia]

You need to insert an empty disc.

[SeaBoundRhino]

The thing is that i did have a disk inserted. It was a Memorex DVD-RW. I guess ill just try it with another type