812@832S VSOG Slooooow Burns...?

Hey all, I’m using ver 1.9.2 1705 with my 812@832S VSOG and when I backup DVD’s, in this case ISO’s… Times are ridiculously slow. At 8x max setting I’m avg’ing around 3-4.7x! I’ve noticed no matter what I set the buffer to, it fills, then runs completely out around 6-7x, then burn speeds slow to a crawl, then it fills, spd goes to 7-8x - Now repeat through out the WHOLE burn. I’ve tried the newest FW CG5G/3E etc… and still get these uber slow avgs and buffer drain. :Z
Btw- I’m using an Xp1600, 512M, XPsp1a. TIA.