| http://www.w3.org/ns/prov#value | - by more than one track widthUS5761187 *27 Aug 19962 Jun 1998Sony CorporationMulti-layer optical diskUS5793407 *27 Jul 199511 Aug 1998Samsung Electronics Co., Ltd.Method and apparatus for forming a light spot smaller than a theoretical limit for high density recordingUS5822135 *1 May 199613 Oct 1998Samsung Electronics Co., Ltd.Lens device including a light controlling mechanism and an optical picku
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