Hi, Thanks for the encouraging responses, I'll go and have a read. Someone also kindly emailed me these URLs with further useful info: http://www.pimpworks.org/ibm/aixled.html http://www.pimpworks.org/ibm/ledcomm.txt I have contact with a AIX CD, and I have obtained (a few!) SCSI CD drive that cn be tweaked to the correct sector size. Couple more questions though: 1. Is there a back-up battery (perhaps in a RTC chip like on a Sparcstation 2), that will have surely failed by 2008. 2. Is there a source to download diagnostic floppy set, I hadn't known about these until today. Thanks again, John _________________________________________________________________ Discover Bird's Eye View now with Multimap from Live Search http://clk.atdmt.com/UKM/go/111354026/direct/01/