Established in 1961 for the standardization of solutions in the field of communications equipment and consumer electronics, Ecma International announced the standardization of holographic media with a capacity of 100 and 200 GB. The specification provides the ability to store up to 200 GB of information on a single HDV disk, which roughly corresponds to 40 ordinary single-layer DVDs. According to analysts, in the near future HDV volume will be increased to 1.3 TB. The recording and reading technology used for holographic media allows you to record 10 Kb of data in a single flash of the laser in case of working with a fixed carrier (no rotation is required). If the disc is rotated, the data transfer rate can reach 20 MB / second, which is much faster than a DVD.
The first standard was called ECMA-377 "Information Interchange on Holographic Versatile Disc (HVD) Recordable Cartridges - Capacity: 200 Gbytes per Cartridge", the second - ECMA-378 "Information Interchange on Read-Only Memory Holographic Versatile Disc (HVD-ROM) - Capacity: 100 Gbytes per disk ".