RECORDING/REPRODUCING DEVICE

摘要

A recording/reproducing device for writing data onto a recording medium, or reproducing data from a recording medium, wherein data matching a recording pattern, so specified as to include a plurality of sets of mark lengths and space lengths mutually different from one another, is written onto a recording medium, and then this data is read to generate data signals. An edge shift detector uses data signals to measure the edge shift amount of a mark formed on a recording medium for each set of a mark length and a space length. A record controller sets a recording parameter for each set of a mark length and a space length based on a measured edge shift amount.