Dunno really what functions HDDRIVER has?
I DO have it, but I never use it. I've always done my partitionning with SCSITOOL/HUSHI. It doesn't fix bootsectors, but it lets me juggle my drives between Ataris, MAC's and pissys, as will. I bet HDDR can probably do that too, I just prefer to stick to a prg I'm used to. :)
IF any trouble occurs, there's always DE/DADE.
-Beats'em all, dude!