Tinkering around with my 9100 I was testing out the BACKUP-3.TD0 disc (now in the FLUKE/9100_Fixture directory) and it allows you to back the entire hard drive to Floppy discs and it seems to tell you how many you will need...or if you can find a SCSI Tape Drive and hook it up to the rear... I wonder if the old BackPack Tape Drive would work. I seem to recall that it is actually SCSI with a SCSI to Parallel interface built in...need to take one apart now. Have one in deep storage at the shop - but it will hold something like 80MB... John :-#)# How to subscribe or unsubscribe from TTL To do either you send email to "MajorDomo@flippers.com" and in the body you state either "Subscribe techtoolslist" or "Unsubscribe techtoolslist", note that the Subject is "" (Blank)... FTP site is: ftp://ftp.flippers.com/TTL/