for the fediverse, @bitsgalore referred me on the birdsite to his scripts for creating/burning discs of various types, which should easily be adapted to make samples!
once I have a corpus that I'm happy with, I'll see if I can post it publicly so that other folks can just nab the images
digipres.club is a space for folks interested in productive conversations about, well, digital preservation! If you enjoy talking about how to do memory work with computers, or even with cardboard boxes of old photos, you belong with us on digipres.club. Many of us are/were Twitter users looking for an inclusive and community supported approach to social media. If any of these things sound good to you, consider joining us now.