Patent ID: 7304922
Filing Date: 2007-12-04
Classification: G11B

Abstract:
1. An apparatus for preparing a master disc of a recording medium on which digital data is recorded in synchronism with pre-recorded address data, said apparatus comprising: address generating means for generating said address data; address conversion area designating means for designating an address data conversion area in accordance with a pre-set conversion rule; pre-format signal generating means for generating pre-format signals pre-recorded on said recording medium, said pre-format signals containing said address data; and recording means for recording information specifying an area specified by said address conversion area designating means as said pre-format signals from said pre-format signal generating means on the master disc; wherein said pre-format signal generating means converts at least a portion of said address data in accordance with the pre-set conversion rule to generate said pre-format signals; wherein said pre-format signal generating means includes: wherein when, as a result of the comparison by said address comparator means, the address data generated by said address generating means is verified to be contained in the area specified by said address conversion area designating means, said address conversion means converts the address data generated by said address generating means in accordance with said pre-set conversion rule.