DH20A1S slowed down recently

[qanda]This thread is about the Lite-On LH-20A1S. Click here to see full specs[/qanda]Hi All,
I’ve recently been writing alot of date with my drive but because im impatient I set the write to highest possible speed (for dvd). Then i started to get errors and coasters for my cups so set the speed abit and I emphasise a bit slower and they all worked yey!

but having encountered the errors I set up smart burn on well practically everything. The burning still worked fine. But i’ve found now the data read and transfer to hd has slowed sooooo much.

I have a 3gb file that prev would of taken 15 minutes (i didnt clock it exactly) to transfer from dvd to hd. But now its taking like 30 or more. my question is this becasue of smartburn because I thought it only made writing safe at almost any speed and its the only thing I can think of. I’ve also tried increasing the write speed back to what it was with the errors and it didnt help.

Any help much appreciated thanks