Method of recording control signals on a removable optically readable disc
like recording device comprising recording control data representing the
physical structure of an optically readable disc. The control data set
either being a standardized set of control data corresponding to the
record carrier or either being a non-standardized set of control data
deviating form the standardized set of control data signals. Preferably
the non-standardized set of control data relates to different values for
the number of information layers present on the record carrier or the
type of record carrier being of the read-only type, recordable or
rewritable type. Preferably a user may select the non-standardized set of
control data by selecting a corresponding type of playback and/or
recording apparatus.