Since our 957 does not support hardware compression on the 4mm DDS drive I have disabled the hardware compression on the 4mm DDS2 drive in our 959. As an experiment I have enabled the compression on the 4mm DDS2 drive in our 959 and started a full backup. We use BACKUP3000 from Orbit Software with the COMPRESS=3 option, which is the highest compression. There does not seem to be any significant decrease in backup time. Does anyone else have any experience with this? Thanks, --------------------------------------------------------------- Barry Durand "The opinions expressed in this Systems Engineer II email are not necessarily the Gulf South Health Plans opinions of my employer" [log in to unmask] ---------------------------------------------------------------