Lite-on 812S@832S - Media not working

I recently bought a Lite-on 812S and then flashed it to 832S. With the drive I bought some Legacy DVD+RW disks. And to be honest I really flashed the drive to 832S in hope that it might work, as I tried several different methods to get the disks to work. But so far none of the disks burned have succeeded, let alone be able to be deleted again. Is there any way I can salvage these disks and used them on the Lite-on, or is there no light at the end of the tunnel?

Computer Specs:

Intel Pentium Celeron 2.7GHz
256 Mb DDR RAM
NVdia GeForce FX 5200
Lite-on 812S@832S