That is a good question, and there is only 1 reason why i can think i shouldnt do the swap. You see the 832s is a DL and so is really handy for large storage (hdd backup).
I usually use +rw in the 811s but, the +rw's that i use have got good dvr content on them that i dont want to delete so i decided to get those datawrite greys based on a survey poll they were supposed to be the most compatible, and they came with a higher price tag so i thought to give them a try. this is so that i could backup the contents of my +rw disks to the greys via the 811s.
But the results are just terrible hence im trying to find a quick fix but i may just go out and buy +r for the backups instead. Thanks for the reply wimpio, anyhow 811s is getting old i know but i aint a person who chucks something out the minute a new thing comes out.