Steve:
I wouldn't let one post get you down.
I have nearly all of the fundraiser discs and have enjoyed them. I have to admit, this one was not my favorite, but I loved getting the Popeye, pencil test, Schoolhouse Rock, and the original "Crunch Bird," which I saw in a theater on its original release lo, those many years ago.
The problems with Blu-Rays are, I believe, big reasons why Blu-Ray has been so slow to catch on. The player seems much more finicky than the conventional DVD players. Your fundraiser disc was not the only disc I have trouble with in my Magnavox player. It has even had trouble with certain DVDs.
Anyway, I think I speak for many of us when I say that we appreciate the care and attention you've given to collecting and sharing these rare specimens of animation's bygone days.