Reproducing apparatus and reproducing method for reproducing data by scanning slant tracks using a plurality of reproducing heads

An apparatus for reproducing data by scanning slant tracks formed on a tape-shaped recording medium using a plurality of reproducing heads disposed on a rotary drum having a first reproduction speed, said apparatus comprising:

• measuring means for measuring error rates by reading said data from said tracks formed on said tape-shaped recording medium using said reproducing heads disposed on said rotary drum, said measuring means being operatively configure to measures said error rates while said tape-shaped recording medium is forwarded at a different speed from the first reproduction speed;
• track detecting means for detecting a worst track deemed to have a highest error rate from said tracks respectively formed at predetermined cycles on said tape-shaped recording medium, based on said error rates measured by said measuring means;
• head determining means for determining a pair of reproducing heads out of said plurality of reproducing heads, said pair of reproducing heads are able to read data recorded on said worst track at lowest error rates based on said error rates measured by said measuring means;
• and
• servo control means for performing tracking servo control such that said worst track is scanned by said pair of reproducing heads determined by said head determining means.

An apparatus for reproducing data by scanning slant tracks formed on a tape-shaped recording medium using a plurality of reproducing heads disposed on a rotary drum having a first reproduction speed, said apparatus comprising:

• measuring means for measuring error rates by reading said data from said tracks formed on said tape-shaped recording medium by said reproducing heads disposed on said rotary drum;
• track detecting means for detecting a worst track deemed to have a highest error rate from said tracks respectively formed at predetermined cycles on said tape-shaped recording medium, based on said error rates measured by said measuring means;
• head determining means for determining a pair of reproducing heads out of said plurality of reproducing heads, said pair of reproducing heads are able to read data recorded on said worst track at lowest error rates based on said error rates measured by said measuring means;
• and
• servo control means for performing tracking servo control such that said worst track is scanned by said pair of reproducing heads determined by said head determining means,
• wherein said servo control means is operatively configured to to position said pair of reproducing heads in the middle of said worst track in a longitudinal direction thereof.