dual layer

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dual layer

Typically refers to optical media that contain two layers on a single side in order to double or nearly double the storage capacity. Also called "double layer." See DVD-9 and Blu-ray.
References in periodicals archive ?
Toshiba's new high-capacity dual layer disk employs Germanium-Tellurium-rich Germanium-Antimony-Tellurium-Bismuth (GeSbTeBi) alloy recording layers that support improved signal processing and erasability.