Thank you for your comments. The Nag screen should not last that long. I have reviewed the code and fixed the cause of that. Also, the nag only appears on the first launch and a random subsequent launches, for no more than 3 seconds. If the value of the software is such that this 3 second delay is just too much to make it useable, then either please donate or feel free to use alternatives that limit the number of disks or launches and charge at least 4 times the amount.
It is, in my view, donationware because it is fully functional without limitation except the occasional donation request. Unfortunately, MU does not have an option for this. Of course, I have no objection to the "Shareware" classification if it is justified in this context. I do know of several very popular "donationware" applications that charge far more and use a similar model and are listed as free because their functionality is complete, with or without "registration" or "donation".
I do appreciate your views and will consider them on all future releases.
(Version 1.0e0)