| http://www.w3.org/ns/prov#value | - the recording and reproducing circuit of FIG. 12, FIG. 15A is a plan view showing a track pattern formed on one region of the magnetic tape, FIG. 15B is a plan view showing track patterns formed on both regions of the magnetic tape, FIG. 16 is a plan view showing a track pattern obtained when the magnetic tape used is not divided into two regions, FIG. 17 is a diagram showing another recording an
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