Digital recording and reproducing apparatus, recording medium used therefor, and error factor estimating method and error factor estimating system thereof

摘要

An error factor estimating method estimates a factor of an error occurring when information recorded on a digital recording medium is reproduced by a digital recording and reproducing apparatus. The error factor estimating method includes the steps of: recording error factor estimation data on a digital recording medium; reproducing the error factor estimation data from the digital recording medium to obtain an error factor estimation signal; and estimating the factor of the error based on the factor estimation. The error factor estimating method can estimate the factor of occurrence of the error based on a factor estimation signal obtained by reproducing the error factor estimation data from the recording medium by the digital recording and reproducing device without affecting user data recorded on the recording medium at all.