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BDXL(Blu-ray Disc EXtra Large) High-capacity Blu-ray formats designed for professional broadcasting and archival uses. Using three and four layers, BDXL media have more than five times the capacity of the first Blu-ray discs (see below).
BDXL drives may or may not read the earlier formats, but regular Blu-ray drives absolutely do not support BDXL. See Blu-ray.
---Modes --Layers GB Hours ROM RE RSingle 25 4.5 X X X Dual 50 9 X X X Triple BDXL 100 18 X X Quad BDXL 128 23 X ROM = Read Only (pressed movie disc)RE = REwritable R = Recordable (write once)
|Blu-ray Cartridge (1.5TB)|
|For archival storage, this Sony optical system records onto quad-layer BDXL discs one time only. The plastic unit (top) is a demo cartridge, showing all 12 discs inside.|