So you know what? After all my bitching and complaining, I just went ahead and dug out a stack of 20-year-old blank disks that I got with one of my parts hauls a few months ago, and just burned the ADF's to disk. I tried mounting RAD: but the UnArc utility included with 3.9 only gives me options to write to DF0-DF3, and everything else seemed way more complicated than it needs to be.
Granted, I had to burn 10 copies to get three working disks, and had to copy a few files off of each copy of each disk to get around all the media errors, but eventually I got it to work. And now I am able to relive my childhood of playing MegaBall on my Amiga.
PS - did that game get faster or did I just get old? :roflmao: