Apparatus and method for writing data to tape medium

A method for writing data to a tape medium using a write head, comprising:

• acquiring first data to be written;
• moving, if a portion of second data written with a second width larger than a first width is already written to a first position on the tape medium at which the first data is to be written with the first width, the write head to a second position where the other portion of the second data is left, not overwritten with the first data;
• adjusting a position of the write head to the second position if the determination unit determines that the tape medium on which the first data is to be written is the particular tape medium;
• sending, to the write head, third data that disables the second data to write the third data to the second position;
• moving the write head to the first position;
• and
• sending the first data to the write head to write the first data to the first position.