Al, I bought a used MDD dual 867 and it came with a Maxtor HD that was 128 GB in capacity even though the person said it was a 240 GB HD. I reformatted it in 9.2.2 and it now says it has a capacity of 234 GB. ASP reports it on the ATA2 bus (100MHz) at ID=0. In the Hard Drive expanded box it says Size 137.42 GB and Capascity of 128 GB. Next to it where it shows the drive, in the expanded box it says Capacity 233.74 GB with 233.72 GB Available. So, ASP gives conflicting results and so I don't know how much it really holds. It's pretty much empty as I plan on using it for video work. Just my .02 cents. STeve << Another alternative to consider is an external Firewire drive. In either case, a question is whether your MDD will see all 200 GB without a new PCI controller card. Al Poulin >>