What media have you tried?
USB2.0 has a transfer rate up to 480Mbit/sec which is approximately 60MB/sec. Normaly you can burn at 16X, which is not recommented. As for the ripping speed it should be a little higher.
Iggy, if ripping speed of 3900 kbs is low, to be in the ballpark, what should it be?
Also, do you know of anything that might hinder the ripping speed? I'm ripping it on an IBM T42 thinkpad (laptop) with 1.7M GHz. with 1GB memory. During ripping, it only uses about 50% of the CPU so I don't think it's the system resources problem.