Thanks to everyone who replied - looks like I'll pack these drives as full as possible! I did no know that system restore could be disabled on an individual drive basis - so I'm going to do that as well.
I was toying with the idea of creating a new, non-administrator user and setting these drives as read-only for that profile (once they are fully loaded etc.) That would prevent accidental over-writes or erasures, but I'm not sure if being a non-administrator would cause many headaches (other than having to log off and back in when installing software etc.) I wound up buying a 5th drive today - the sale was over, a new sale was on but this one was $20 more. So it goes - I missed a set of 150 CD's when I did my initial calculations - between that, the fact that the drives hold 40 gigs each less than I thought, plus the slack space loss, it looks like I'll need the 5th drive... Thanks again - MCC -- - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, Michigan www.markcassino.com - - - - - - - - - - - - - - - - - - - - -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

