Hi,
I tested a few other disks and they had the same issue. I'll try to swap the drive, but I currently don't have another one I could test. That doesn't preclude fixing the block size issue, though: Without this, it's not even possible to access the floppy drive at all.No, it does not. But without proper verification, the fix might be incomplete.
I gave the drive a good dusting, reseated all cables and tested it again. The errors are gone, I was able to dump & mount 3 different floppy disks. One of them had a corrupted filesystem, but no CRC errors. I assume the disk got damaged at some point, or it's some sort of DOS quirk or copy protection. Looks like the block size fix will suffice! I'll see if I can test the patch and find out where the 8KiB requirement comes from.