On Tue, 9 Feb 2016, Pete Lancashire wrote: > There are a few odd balls in 9-track as well, but the 556 was a typo. Really? I actually *do* have a 9 track tape drive (HP 7970) that has 200/556/800 bpi densities: http://computermuseum.informatik.uni-stuttgart.de/pics/hp1000/hp7970_2.jpg And it is a *9* track tape, I know for sure. Christian