Patent ID: 8462607

Claim:
An optical disc having an internal edge, an external edge and an information area situated therebetween, the optical disc comprising a first substrate; a second substrate disposed above the first substrate; a recording layer disposed between the first substrate and the second substrate; a reflecting layer disposed between the first substrate and the recording layer; and a surface structure discontinuously disposed on a surface of the second substrate, the surface structures comprising: at least one first stripe-protrusion formed on the surface, the first stripe-protrusion having a first stripe-body and a first tip portion extending from the first stripe-body in a direction parallel to the surface, the first tip portion having a width less than a width of the first stripe-body; and at least one second stripe-protrusion formed on the surface, the second stripe-protrusion having a second stripe-body, a first pincer portion and a second pincer portion, both the first and second pincer portions extending from the second stripe-body in a direction parallel to the surface so that an indentation being formed between the first and second pincer portions, wherein the first tip portion extends into the indentation between the first and second pincer portions and is not in contact with the first and second pincer portions such that a curved groove is formed between the first tip portion and the first and second pincer portions.