An optical recording medium having a wobble desirably arranged in a production
process when having wobble at part of interfaces of lands and grooves is provided.
An optical recording medium comprising an approximately disk-shaped disk substrate
15, formed in its surface with trenches 15a and having projections
and recesses divided for every track region by the trenches 15a,
on which are stacked an optical recording layer 16 having relief shapes
corresponding with the trenches 15a and a protection film 17
and of a format where both regions of the projections (lands L) and the recesses
(grooves G) are used as recording regions etc., wherein wobble W for providing
clock information or address information is formed, between a pair of facing side
walls forming each trench 15a, in a side wall portion at an inner
circumferential side of the disk substrate 15 when seen from the recess
(groove G) and at an outer circumferential side of the disk substrate 15
when seen from the projection (land L).