| 主权项 |
1. A magnetic recording and reproducing device, comprising:
a magnetic recording medium including a first track and a second track, the first track extending in a first direction, the second track extending in the first direction and being arranged with the first track in a second direction intersecting the first direction; a recording unit; and a reproducing unit, the first track including
a first sub-track extending in the first direction, anda second sub-track extending in the first direction, the second track includinga third sub-track extending in the first direction, anda fourth sub-track extending in the first direction, the second sub-track being disposed between the first sub-track and the fourth sub-track, the third sub-track being disposed between the second sub-track and the fourth sub-track, the recording unit recording information in the first track and the second track, the reproducing unit reproducing first information recorded in the first track while opposing the first sub-track, the second sub-track, and a first boundary between the first sub-track and the second sub-track, the reproducing unit reproducing second information recorded in the second track while opposing the third sub-track, the fourth sub-track, and a second boundary between the third sub-track and the fourth sub-track, the first sub-track having a first sub-track width along the second direction, the second sub-track having a second sub-track width along the second direction, the third sub-track having a third sub-track width along the second direction, the fourth sub-track having a fourth sub-track width along the second direction, and the third sub-track width being wider than the first sub-track width, being wider than the second sub-track width, and being wider than the fourth sub-track width. |
