We shouldn't let this point go, and I appreciate Andy's data oriented mind here. I have yet to see any, even halfway objective figures that compare newer mac and pc performance when it comes to audio performance. It is important to have this to substantiate any general claims about each. The thing is that to really substantiate a claim, it almost has to be based on specific comparison, the more the better, and then inferring or generalizing from that data. The validation should requires that as many things are as equal as possible between the two systems, so what is really left to have any varying factor on performance is the core notebook system (hardware) and its OS. For instance, I would like to see a comparison of two systems, both a notebook and mac with the same core duo processors/speeds, same amount or RAM, same amount of disk space and speed, same audio app and interface, same IO for the interface, same content used for the test, same ASIO or other driver from the app manufacture, and so on. There are many apps and audio interfaces that will work on both mac and pc, so a test of this sort is possible. Kris ----- Original Message ----- Andy asked: >> What would be nice though is some comparative figures of latency for >both >> mac and pc.