. . . . . "103706464"@en-us . . "0"^^ . . . "103851787"^^ . "optical disk"^^ . "a disk coated with plastic that can store digital data as tiny pits etched in the surface; is read with a laser that scans the surface"@en-us . "03851787-n"^^ . "optical disk"@en-us . "0"^^ . "optical disc"@en-us . . .