| 摘要 |
<p>A signal recording and reproducing device which reproduces information signals recorded in the signal recording area of a magnetic disk (100) by means of a magnetic head (3) sector by sector and fetches the reproduced signals through an equalizer (8), an ECC circuit (9), and a buffer (10). A control circuit (12) acquires evaluation values indicating the difficulty of operation of reproducing information signals from the disk (100), sums up the evaluation values acquired until proper reproduction becomes possible, and, when the cumulative evaluation value exceeds a prescribed value, controls the information signals recorded in the corresponding sector to be recorded in another sector, thus preventing the recorded information signals from becoming unreproducible in the future.</p> |
