Next generation of the optical disc is announced to be launched in the nearest future. The maximum data storage capacity on a single optical disc that is available on the market now is up to 500 GB, and the new format is going to be able to store twice of that.
The discs are called ‘Archival disc’ and it is claimed that the storage unit can retain its data for more than a 100 years.
Higher capacities in optical storage are made possible due to smaller sized pits and marks and shorter wavelength lasers and improved drawing rates. In the case of the ‘Archival Discs’ alternative approach is used: extra data is recorded on the land areas between grooves that are traditionally unused.
Optical discs have great potential to further enhance their recording density and storage capacity with technological advancements in, for example, signal processing technology. If we compare the growth in the recording density of HDDs, optical discs, and magnetic tapes, in 10 years, from 2016 to 2026, the recording density will improve by 7~15% for HDDs and 30~46% for optical discs. For the magnetic tapes, the increase is estimated to be less than 30%. To estimate the longevity of the media, industry standard acceleration tests were conducted. Error occurrence rates were measured in temperatures 30℃ and above and in less than 70% humidity. These tests estimate that the prototypes of the Archive Discs can reliably store data for more than 100 years. On the other hand, hard disks have a lifespan of a few years, and magnetic tapes a dozen or so years.
Because optical discs have a long life, unlike hard disks and magnetic tapes, there is no need to regularly migrate data from degraded media to new media. Moreover, optical discs do not require operations or cooling of facilities that are associated with hard disks, therefore, long-term storing of data on optical discs can reduce power consumed as well as costs incurred. If 1PB (petabyte) of data is stored for 20 years on HDDs, magnetic tapes, and optical discs, with widely available HDDs and magnetic tapes, the costs come out to be around the same, whereas with optical discs, it is estimated that the data could be stored at half the cost.
Another technology used on the Archival Discs is,”Crosstalk-cancelling technology”. This technology cancels crosstalk noise generated by adjacent tracks. This should ensure playback quality without read errors, even with narrow track pitches.
Falcon Technologies International is constantly monitoring the overall trends of the optical media market and tends to allocate its resources towards innovation and improvement of its professional product lines, in particular, the Century Archival, which is a cutting-edge technology, built with Gold or Platinum layer to ensure maximum security, longevity and protection for stored data proven by a number of internal and independent third-party tests.