Yes, we have HP 97540T/P series 5.25-inch Winchester Disk Drives working with our RS/6000 530. But I couldn't find out any way to have my Exbyte external 8mm tape drive worked with my RS/6000 machines. Any advice is greatly appreciated. Ching Shih shih at cithex.bitnet shih at cithe1.cithep.caltech.edu