How much data can a Blu-ray Disc hold?
A single-layer disc can hold 25GB. A dual-layer disc can hold 50GB. To ensure that the Blu-ray Disc format is easily extendable (future-proof) it also includes support for multi-layer discs, which should allow the storage capacity to be increased to 100GB-200GB (25GB per layer) by adding more layers to the discs. • How much video can you fit on a Blu-ray Disc? It depends on the video code employed and whether the disc is single or dual layer: High Definition (HD): When recording with MPEG2 compression, a 25GB disc is able to record approximately 2 hours 48 min. or 5 hours 36 min. of High Definition (HD) video on a 50GB disc. * All record times based on 19.4Mbps United States ATSC Broadcast Rate and MPEG-2 encoding. • Does Blu-ray Disc require a cartridge? No. The development of new low cost hard-coating technologies has made the cartridge obsolete. Blu-ray Disc will instead rely on hard-coating for protection, which when applied will make the discs even more resistant to scratches and
A single-layer disc will be able to hold 25GB and a dual-layer disc will be able to hold 50GB. To establish itself for the future, the Blu-ray Disc format is easily extendable and includes support for multi-layered discs, which would allow the storage capacity to be increased to 100GB-200GB (25GB per layer) simply by adding more layers to the discs.
