To burn 'on-the-fly', you will get better, faster results if your source drive and target drive are not on the same IDE channel. Your two drives ARE on the same IDE channel. You may want to move one of them if you wish to get faster performance. Your current config means that these drives are sharing a data transfer path. Data travels in only one direction at a time, that is where your bottleneck is.
Also, your dvd-rom is capable of faster read speeds with modded firmware....read this
The two cd-dvd speed tests above look excellent. :iagree:
Let us know how it goes.