In order to minimize such cross-talk, it has been the usual practice to provide transducers Ha and Hb used for alternately recording in tracks Ta and Tb, respectively, with air gaps Ga and Gb having different azimuth angles ??a and ??b, respectively, as shown particularly on FIGS. 2A and 2B. Each of heads Ha and Hb has a finite width and produces magnetization of magnetic domains in the material o