Thanks for the replies. My question was about what is generally available to MK collectors (that is, what is circulating as opposed to what has been recorded but is not circulating) and, within the limitations of keeping ON EVERY BOOTLEG up to date, you have answered that.
Since at least one of you has not read my previous posts, perhaps I should explain. I am not the DS/NHB/MK fan in this household; that is mrs twm. I have attended many DS/NHB/MK shows over the years and, for some of the earlier ones, my role was not only to accompany mrs twm to the shows but also to record some of them for her. Mrs twm, for her part, does not get involved with AMIT, with trading or with any of these sorts of thing at all; it just doesn't much interest her, whereas the prospect of getting a new MK album or attending MK concerts does. We both enjoy the social side of going to concerts. I should add that I only became involved with AMIT when MK came to tour with Dylan and soon realised that some of the AMIT-ers were folk we had met "on the road", as it were.
My comments on the ON EVERY BOOTLEG website were not intended to be disparaging. I know just how much hard work, over a long period, goes into developing such a site and keeping it updated. In Dylan World, things are organised differently and I am more used to the approaches used by collectors there. And, in addition, I do not collect bootlegs at all (I have very few of them indeed) and know next to nothing about MK and related bootlegs. Thus, for several reasons, ON EVERY BOOTLEG was not made for me (nor should I have expected it to be).
To come back to the present, I have been sorting through some old cassette recordings and trying to establish which shows mrs twm has that are not circulating generally and which shows mrs twm has that may be in better quality than what is cirrculating (or not in better quality, as the case may be). That was why I asked the question.