I've had five Reaper instances running batch since about nine this morning (14 hours). The first batch just finished up - 4400 sample files without a hitch. To say I'm pleased is an understatement - I have other tools where batch processing is one of the main functions of the software, and none has performed reliably like this. And though I haven't benchmarked it, it seems Reaper is kicking some ass in the speed department also. Thanks guys! I'm on an early 8-core running 10.6.2.