Question

what is the storage capacity of Blu ray disc in GB

Answer 1

The plastic disc is 120 millimetres (4.7 in) in diameter and 1.2 millimetres (0.047 in) thick, the same size as DVDs and CDs.[5]Conventional or pre-BD-XL Blu-ray discs contain 25 GB per layer, with dual layer discs (50 GB) being the industry standard for feature-length video discs. Triple-layer discs (100 GB) and quadruple-layer discs (128 GB) are available for BD-XL re-writer drives.[6]

Answer 2

Discs and panasonic has announced plans to increase the capacity from 25 GB to 33.4 GB
HOPE IT HELPS...!!!