Abstract: Phenomena of shifting of magnetization reversal points called a pattern peak shift and a stream shift which occur when digital data consisting of "0" bits and "1" bits recorded on a record medium at a high density is reproduced are resolved by discriminating whether the digital data to be recorded includes a bit pattern which causes those shifts or not, and for the digital data which may cause such shifts, recording the data at a timing such that the shifts are cancelled when the data is reproduced. Thus, the digital data recorded at the high density through a narrow discrimination window can be precisely reproduced.