Cartridge including tape-shaped magnetic recording medium

A cartridge comprising:

• a magnetic recording medium having a magnetic layer, a base layer, a substrate, and a back layer;
• and
• a cartridge memory,
• wherein the cartridge memory stores an adjustment information including an information relating to adjusting a tension applied to the magnetic recording medium in a longitudinal direction of the magnetic recording medium,
• wherein a plurality of servo bands are provided along the longitudinal direction of the magnetic recording medium in the magnetic layer,
• wherein a thickness of the magnetic recording medium is equal to or less than 5.5 μm, and
• wherein a dimensional change amount Δw in a width direction of the magnetic recording medium with respect to a tension change in the longitudinal direction of the magnetic recording medium is 680 ppm/N≤Δw≤8000 ppm, wherein the dimensional change amount Δw is determined according to:
• Δ
• ⁢
• w
• [
• ppm
• /
• N
• ]
• =
• D
• ⁡
• (
• 0.2
• N
• )
• [
• mm
• ]
• -
• D
• ⁡
• (
• 1.
• N
• )
• [
• mm
• ]
• D
• ⁡
• (
• 0.2
• N
• )
• [
• mm
• ]
• ×
• 1
• ,
• 000
• ,
• 000
• (
• 1.
• [
• N
• ]
• )
• -
• (
• 0.2
• [
• N
• ]
• )
• where D(0.2 N) and D(1.0 N) represent widths of a sample of the magnetic recording medium subject to loads of 0.2 N and 1.0 N, respectively, in the longitudinal direction of the magnetic recording medium under 25° C. and 50% RH, and a width of the sample of the magnetic recording medium is ½ inch prior to being subject to a load.