I’ve been reading about this in a few places now.
Leopard’s Finder has a glaring bug in its directory-moving code, leading to horrendous data loss if a destination volume disappears while a move operation is in action. I first came across it when Samba crashed while I was moving a directory from my desktop over to a Samba mount on my FreeBSD server.
This is why you should NEVER just move data from one drive to another - copy it first, only then delete the original.
