I flashed my I/O drive from G7C9 to B7P9 and burned a 4x disk at 4x. It errored out at 8x as you can read in my othe post.
I cannot boot to SAFE MODE in W2K Pro as I get these stop error messages for some reason. So I have to flash in normal mode with all background tasks shut down.
However Qscan states that I do not have the latest firmware and will not work. Now I know that B7T9 is the latest but it seems that others are having the same problem.