Optisches Aufzeichnungsmedium, Vorrichtung zur Herstellung eines optischen Aufzeichnungsmediums, und Verfahren zur Herstellung eines optischen Aufzeichnungsmediums

摘要

In an optical recording medium 10 comprising groove tracks 11 including a first area Ba for recording record information and a second area Ca in which predetermined data is formed as embossed pit rows 19 and a readout of other data overwritten and recorded on said embossed pit rows 19 is prevented, and land tracks 12 formed between the adjacent groove tracks 11, a depth Ed and a duty of the embossed pit rows 19 are set so that a radial push-pull signal in the first area and a radial push-pull signal in the second area become the substantially same level.