Blu-ray disc
Film format
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Blu-ray is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-definition video. Wikipedia
Invention date: June 2006
Block size: 2 KB sector, 64 KB ECC-block
Capacity: 25 GB (single-layer); 50, 66 GB (dual-layer); 100, 128 GB (BDXL); (Up to four layers are possible in a standard form BD)
Developed by: Sony; Blu-ray Disc Association;
Dimensions: 12 cm (4.7 in) diameter; 1.2 mm (0.047 in) thickness;
Read mechanism: 405 nm diode laser, 36 Mbit/s
Released: June 20, 2006; 17 years ago