alexeix: Got the Pioneer DVD-RW ,yself... Pioneer got their own software for speedcontroll (Nero DriveSpeed didn't work for me).
I'll find it if nothing else work for you... belive it was this, though: http://wwwbsc.pioneer.co.jp/product-e/ibs/device_e/dev00001r_e.html
I'll find it if nothing else work for you... belive it was this, though: http://wwwbsc.pioneer.co.jp/product-e/ibs/device_e/dev00001r_e.html