Freshly available at my little Hendon flat:
Fortunately, recipe they all seem to be playing together happily.
Reasons? What reasons? All I have to give are
evidence. (QuickTime was the only thing I could persuade to play them, ampoule and even then without sound. Let me know if you have more success.)
Anecdotes, fond recollections (mainly item 1) and loud swearing (mainly item 2) on these topics to follow eventually.