I guess technically you're correct Fernando - whether you stripe or mirror 2x76GB drives, u still get 76GB's. I meant the JBOD feature in the RAID Bios and not Raid0. eg, one of my existing arrays is JBOD (just a bunch of disks) & I have a 300 + 400 = 652GB of space! (yes, after 13 yrs of accumulating stuff - files, scans, pics, movies, etc - I still have most of it (Knock on wood:) that exceeds 400GB. Since I'm a little nervous bout keeping it on a JBOD, it's temporary & I'm looking around for a dependable solution (somehow compressed) to keep it all on one backup HD. Any ideas?