BDRBDRE

BDRBDRE refers to the family of Blu-ray Disc recordable media, encompassing two closely related formats: BD-R (Blu-ray Disc Recordable) and BD-RE (Blu-ray Disc Rewritable). These formats are part of the Blu-ray standard developed by the Blu-ray Disc Association and are designed for high-capacity data and video storage.

BD-R discs are write-once media. The most common configurations are 25 GB for single-layer and 50 GB for dual-layer discs. They are used for distributing video content, backups, and archival storage, and are supported by a wide range of Blu-ray recorders and players. A BD-R disc permanently alters its recording layer during initial writing.

BD-RE discs are rewritable. They use a phase-change recording layer that allows data to be erased and rewritten multiple times. They are available in 25 GB and 50 GB formats, and, in the BD-XL family, can reach 100 GB or 128 GB. BD-RE media is used when frequent updates or reusability are required, such as test data, backups, and temporary storage.

BD-XL extensions provide higher capacities, with discs capable of 100 GB or 128 GB, but require compatible drives and firmware. The BD-R/BD-RE formats share compatibility with Blu-ray recorders and players that support Blu-ray data and video playback.

The term BDRBDRE is used informally to refer to Blu-ray recordable media as a group and to distinguish these formats from read-only BD-ROM discs.