Sony Group Corporation
MAGNETIC RECORDING CARTRIDGE

Abstract:

A magnetic recording cartridge is provided and including a magnetic recording medium, wherein an average thickness of the magnetic recording medium t.sub.T is 3.5 .mu.m.ltoreq.t.sub.T.ltoreq.5.6 .mu.m, a dimensional change amount .DELTA.w in a width direction of the magnetic recording medium with respect to a tension change in a longitudinal direction of the magnetic recording medium is 700 ppm/N.ltoreq..DELTA.w.ltoreq.20000 ppm, the magnetic recording medium is accommodated in a state of being wound around the reel in the cartridge case and (a servo track width on an inner side of winding of the magnetic recording medium)-(a servo track width on an outer side of winding of the magnetic recording medium)>0 is satisfied, and a squareness ratio measured in a vertical direction of the magnetic recording medium is 65% or more.