| 摘要 |
A first method for acquiring data from a recording on a disk medium, comprises the steps of, successively reading bits defining a data set from different parts of the disk, continuously error correcting the bits to validate at least a part of the data set read from the disk, and, terminating reading upon successful validation of the data set by the error correcting step. A second method for acquiring data from a recording on a disk medium, comprises the steps of reading a data set beginning from a first position on the data recording, reading the data set from a second position radially spaced in a first direction from the first position absent acquisition of an error free data set from the first position; and, reading the data set from a third position radially spaced in an opposite direction beyond the first position absent acquisition of an error free data set from the second position.
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