I also thought it was media, until I bought some Maxell 4x +R and some Verbatim 4x -R.
I exchanged the I/O Magic for the Sony 16x Dual Layer, and my backups still won't work. The Sony did actually have an I/O error while burning, it canceled the process and said something about an invalid destination. But the CD's and DVD-video I copy work great. Another thing too, in my hardware properties, It's shows this as being installed: AVX CD/DVD-ROM SCSI CdRom Device Its labeled as DVD Drive (F:) in My Computer, and the Sony is DVD-RW Drive (D:). By the way my Ps2 is 8 months old and will play games burned on any media, as long as it wasnt done with my computer. Anyway, thanks for all the help.