Processing data recorded on a tape medium

A device for processing data recorded on a tape medium, said device comprising:

• a first control part for controlling a read head to read specific data recorded in a first area among data recorded in a first format on said tape medium;
• a generation part for generating first specific information that specifies a part among said specific data written in a second area different from said first area corresponding to a part of said specific data written in a second format in a third area different from said second area, and second specific information for specifying a read position of other data among data recorded in said first format on said tape medium;
• and
• a second control part for controlling a write head to write said specific data and said first specific information in said second area of said tape medium and to write said specific data, said first specific information, and said second specific information in said second format in said third area of said tape medium.

A method for processing data recorded on a tape medium, said method comprising:

• reading specific data recorded in a first area among data recorded in a first format on said tape medium, wherein data in said first format is recorded at a first recording density;
• writing said specific data in a second area of said tape medium different from said first area of said tape medium;
• and
• writing said specific data in a second format in a third area different from said second area of said tape medium, wherein data in said second format is recorded at a second recording density different from said first recording density.