I'm working with a Mac issue Pro Server with a 4-drive RAID 5 which failed in service. I imaged with success all drives to image files and have been trying to reassemble the data, relying mostly on R-Studio since it will recognize the HFS. Using the default settings, I went through all 24 permutations and have settled on 6 of them to do a full scan based on a brief scan which showed a partition of proper size. Each scan takes about seven hours to complete, so while I wait I am trying to learn if the standard "blue" Mac card (which has no configuration apart from the Mac standard -- whatever that is) uses a 64KB block size and Left Synchronous block order. The web is void of this information. Anyone have any knowledge or experience on this?