Write-one type recording medium storing time and data-writing management data and recording apparatus thereof

A method of recording for a write once-type recording medium having a guide groove, comprising the steps of:

• reproducing from said recording medium, by tracking control, management data stored in said guide groove, said management data being composed of a series of track-position management data including frame numbers of said recording medium and data-writing management data, said track-position management data and said data-writing management data being super-imposed on each other in a way that said tracking-position management data are replaced with said data-writing management data per specific frame number;
• comparing, per frame number, said management data with a series of reference track-position management data having said same number of data as the number of said management data;
• outputting, if data of said track-position management data on a frame number is equal to data of said reference track-position management data on that frame number, that equal data, and if those compared data are not equal to each other, judging whether that compared data of said track-position management data is data which is replaced with said data-writing management data, then outputting said data-writing management data if that compared data is judged as the data replaced with said data-writing management data, while executing error correction if that compared data is judged as data not replaced with the data-writing management data, which is indicative of an error being generated in said management data;
• and
• managing said tracking control of said recording medium according to the outputted equal data and for managing data-writing to said recording medium according to the outputted data-writing management data.

A write once-type recording medium having a guide groove comprising:

• first management data, having a plurality of management data components which regularly vary at a constant time cycle, for constantly managing positions of a track in said guide groove while data-writing/reading is executed;
• and
• second management data for managing said data-writing,
• wherein both said first and second management data are optically recorded on places in said guide groove, where the places are displaced from said track, and both said first and second management data are superimposed on each other in a way that specific components of said management data components of said first management data are repeatedly replaced with said second management data at a longer time cycle than the constant time cycle.