#119098. Asked by Jerry12. (Dec 03 10 4:11 AM)
Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to supersede the DVD format. The format defines as its standard physical media a 12 cm (same as DVDs and CDs), 25 GB per-layer optical disc, with dual layer discs (50 GB) the norm for feature-length video discs and additional layers possible later.
The name Blu-ray Disc refers to the "blue laser" used to read the disc, which allows for six times more storage than on a DVD.
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