4K Content Distribution
The Blu-ray Disc Association (BDA) has been also discussing the possibility to bring 4K into the Blu-ray specifications, with a new standard for 4K content stored in triple-layer 100GB Blu-ray discs. In Germany, Singulus Technologies last year said it had production-tested (BLULINE III) triple layer Blu-ray disks with a 100GB capacity. With a new data compression method for the ultra-high definition technology, the storage volume per information layer could be increased from 25GB to 33GB.
4K Ultra High Definition TV (UHDTV) format - also known as Quad HD or UHD-1 is derived from Digital Cinema's 4K (4096x2160 pixel) format, but for TV the pixel count is reduced to 3840x2160, this being exactly four times that of HDTV - hence 'Quad HD.'
New "Archival Disc" 300GB Optical Disc Standard
Sony and Panasonic have formulated "Archival Disc", a new standard for professional-use optical discs for long-term digital data storage. The Archival Disc specifications include a 300 GB write-once disc with three recording layers in each of its sides (double-sided).
Sony and Panasonic plans to launch systems with a recording capacity of 300 GB per disc from summer 2015. In addition, both companies plan to leverage their respective technologies to further expand the recording capacity per disc to 500 GB and 1 TB.
Wait, there's more! 512 GB Optical Disc For Data Archiving
Pioneer and Memory-Tech have jointly developed a high-capacity optical disc for data archiving with a capacity of 256 GB on a single side and with the use of double-sided disc technologies, its capacity can be expanded up to 512 GB.
By stacking eight recording layers capable of recording 32 GB per layer, recording capacity of 256 GB on the single side of a disc has been achieved. High-speed recording is also supported, allowing recording at up to 4x speed (Blu-ray Disc format standard).