Method and apparatus for recording data

摘要

A method and an apparatus arranged to record data at a higher density. Learning data generated by a learning data generating circuit is recorded on a disc and is actually reproduced by a player to measure inter-code interference in the learning data by an inter-code interference measuring section. In a pre-emphasis correction value calculating section, a pre-emphasis correction value corresponding to the measured inter-code interference is calculated. The result of this calculation is recorded as a table in a ROM of a recording edge position calculating circuit. The recording edge position calculating circuit processes recording data output from an information source in accordance with the table recorded in this ROM.