Method and apparatus for magnetic recording and reproducing.

摘要

Methods and apparatuses for recording and/or reproducing data on a magnetic recording medium using helical scanning heads employ a recording format such that the words of data for a unit time period are rearranged and distributed over a pair of adjacent tracks in such a manner that those words whose position within the input or output signal is 4n<th> are distributed on the first half of the first track, those words whose position is 4n+1<th> are distributed on the first half of the second track, those words whose position is 4n+2<th> are distributed on the second half of the second track and those words whose position is 4n+3<th> are distributed on the second half of the first track. In the first halves of the tracks, the general trend is for those words which occur later in the input or output sequence to be disposed closer to the centre of the track, whereas in the second halves of the tracks, the general trend is for those words which occur later in the input or output sequence to be disposed further from the centre of the track. <IMAGE>