An optical recording medium has a user data area and a lead-out area,
wherein the user data area and the lead-out area each has grooves and
lands formed thereon. Wobbles are formed on at least one lateral surface
of grooves of the user data area and the lead-out area, and configured
such that wobble characteristics are made different between the user data
area and the lead-out area. Different types of wobbles are formed on the
grooves of either the user data area or the lead-out area, thereby
preventing an optical pickup that performs recording/reproduction from
deviating from the user data area. Also, in a multi-layer optical
recording medium, a whole area of a recording layer is configured to have
a same condition, thereby preventing deterioration in reproduction and/or
recording due to a difference in light power transmittance of another
recording layer.
