In an erasing and recovering system for a data block on a magnetic tape in a magnetic tape recording and reproducing apparatus, the system includes: a detecting unit for detecting data error caused by a damaged portion on the magnetic tape by reading a data block just after the data block is written...http://www.google.de/patents/US5327301?utm_source=gb-gplus-sharePatent US5327301 - Erasing and recovering system for data block on a magnetic tape
