High-density optical recording media and method for making same

High-density reproduction-only optical disc and method for...

Holder for a rigid information disc and loading-system comprisin

Homogeneous composition of microcrystalline semiconductor materi

Hub-chucking type disklike recording means

Hubless optical disc having low radial runout and method of manu

Hybrid disc and method and apparatus for discriminating same

Hybrid discs

Hybrid discs displaying certain dimensional values

Hybrid disk and method of writing data to and/or reading...

Hybrid optical data carrier having a modified CD layer

Hybrid optical disc construction

Hybrid optical disc construction

Hybrid optical disc having depths of pits as function of...