Home› DISK RECORDING MEDIUM INCLUDING DATA PRE-FORMATTED-DATA-RECORDED HEADER HAVING FIRST AND SECOND IDENTICAL ADDRESS NUMBERS RADIALLY DISPLACED FROM EACH OTHER ON OPPOSITE SIDES OF GROOVE OR LAND TRACK CENTER LINE, AND DISK DRIVE UNIT FOR USE WITH THE RECORDING MEDIUM
DISK RECORDING MEDIUM INCLUDING DATA PRE-FORMATTED-DATA-RECORDED HEADER HAVING FIRST AND SECOND IDENTICAL ADDRESS NUMBERS RADIALLY DISPLACED FROM EACH OTHER ON OPPOSITE SIDES OF GROOVE OR LAND TRACK CENTER LINE, AND DISK DRIVE UNIT FOR USE WITH THE RECORDING MEDIUM