Today I visited somebody way up in the northern part of the country. And, although the Netherlands is a relatively small country, it still took me a couple of hours to get there (which is pretty unusual here).
I was greeted by a nice man who had salvaged a large collection of discs from an AS/400 storage unit. This means that I now have added 44 spare drives in all sizes to the collection.
So, for the foreseeable future I have enough spare drives!