Jerome Fine replies: I have attempted to combine the archive aspect with a full backup in my own situation that may also be of interest. I understand, however, that my own solution may not be practical for everyone else, but here it is. I was able to acquire a sufficient number of ESDI drives at a very low cost to allow me to use them on a real PDP-11 system. At one point, I even started to use a 1.2 GByte Hitachi DK516-15 drive, but have never been able to get them to work properly with the Sigma RQD11-EC quad controllers. But on the PC system, I find they are great. And since I archive as must of the stuff that does not change as needed, I still have almost 300 MBytes free. Every other day, I simply use "Explorer" (yes I am ashamed to admit I am on W95 - ugh) to copy all the files from the primary drive to a spare drive which I rotate around every 10 days (with a total of 3 drives for the month) so as to keep at least within a 1 1/2 week period of keeping all files up to date. I realize that this means getting inside the case all the time to physically change the hard drives, but so far it has worked fairly well. By having a complete backup on drive D:, that is not a problem. It does mean that I must add the terminating resistor and switch the drive ID number if it is to become drive C:, but I don't need to do that operation more than once a year when I do something special. Meanwhile, when my primary drive went belly up about a year ago, I was fortunate to be able to just add the terminating resistor to the latest backup and just carry on. The only thing I lost was the dates on the directories since whenever the C: drive is copied to the D: drive, the current date is used on the directories, but the original date (last date modified) is still kept on all the other files. Just a suggestion, probably impractical for most of you. Sincerely yours, Jerome Fine