DATA DESTRUCTION PREVENTING METHOD, RECORDING APPARATUS PROVIDED WITH DATA DESTRUCTION PREVENTING CAPABILITY, AND DISC RECORDED WITH GUARD BAND

摘要

A DISC HAVING RECORDABLE AND RECORDED AREAS DISCRETELY SCATTERED OVER IT AT THE SAME TIME IS FORMED WITH IS FORMED WITH A GUARD BAND TO PREVENT THE RECORDED AREA FROM BEING DESTROYED BY A TRACK JUMP CAUSED BY AN UNDUE IMPACTOR VIBRATION APPLIED TO THE DISC DURING A RECORDING OPERATION. ADDITIONALLY, STORING IN MEMORY INFORMATION OF AN EDGE OF A RECORDED AREA BY A PREDERTERMINED AMOUNT BEFORE RECORDING, THE EDGE PROVIDING A BOUNDARY BETWEEN THE RECORDED AREA AND A RECORDABLE AREA, ALLOWS RECOVERY OF DATA IN THE RECORDED AREA DESTROYED BY A TRACK JUMP CAUSED BY AN UNDUE IMPACT OR VIBRATION APPLIED TO A DISC. FIGURE 8