Okay, so before I say anything, it's probably not my Memorex discs or the images, I checked the images... and my friend has successfully burned 3 backups on his computer. Anyway, here is the error report... any help is great, thanks.
I 14:28:43 ImgBurn Version 2.5.0.0 started!
I 14:28:43 Microsoft Windows 7 Ultimate Edition (6.1, Build 7600)
I 14:28:43 Total Physical Memory: 2,077,044 KB - Available: 1,049,748 KB
W 14:28:43 SPTD can have a detrimental effect on drive performance.
I 14:28:43 Initialising SPTI...
I 14:28:43 Searching for SCSI / ATAPI devices...
I 14:28:43 Found 1 DVD