Recording apparatus, visible image forming method, recording medium and computer data signal

摘要

When an optical recording device of a recording apparatus that is for executing optical recording of information on an optical disk records data on an optical disk, it obtains information by which the content of the data optically recorded can be guessed from the data recorded or from data of the recording apparatus. An image representing the obtained information by which the content of the data can be guessed is formed on a thermosensitive medium provided on the optical disk.