Patent ID: 7136347

Claim:
A method of recording record information onto information record medium, said information record medium comprising: an information record track formed on said information record medium, for recording said record information; and pre-information which includes address information indicating a position on said information record medium, recorded on said information record medium as an even pre-information or an odd pre-information in each at least one or more than one record information unit for record information, wherein said even pre-information and said odd pre-information are formed by different patterns on a land track, and said record information including at least one or more than one record information unit recorded on a groove track, said method comprising: a detecting process of detecting said pre-information recorded on said information record medium; a generating process of generating said record information which includes a synchronization signal added to each record information unit in correspondence with said detected pre-information; and a recording process of recording said generated record information including said synchronization signal from predetermined position to said pre-information onto said information record track.