Information recording device and information recording method

An information recording device comprising:

• a controller configured to control recording of information on a magnetic recording medium comprising tracks, wherein the recording is performed in units of a track group comprising plural adjacent tracks, wherein each pair of adjacent tracks overlap with each other;
• a managing module configured to manage two or more counters corresponding to each of plural track groups that are adjacent to each other;
• an updating module configured to update a count of one of the two or more counters corresponding to a second track group that is adjacent to a first track group of the plural track groups if information has been recorded on the first track group;
• a determining module configured to determine an attribute of the second track group based on the updated count of the one of the two or more counters corresponding to a second track group;
• and
• a rewriting module configured to rewrite information recorded in the second track group based on the determined attribute.