no, i meant to select what the drive advertises. it would be a bit disconcerting if flipping a bit had to reformat a drive! On 4 October 2011 13:01, Richard Miller <9fans@hamnavoe.com> wrote: > > perhaps there's an option bit? > > If the drive was physically formatted with 4096-byte sectors, > I can't see how changing a logical bit could prevent unaligned > writes from causing a read-modify-write cycle. > > >