A culmination of Sony's metal technology the D8 aims to provide the stability and reliability demanded by the QG series of 8mm data cartridges. Employing such features as Super Stable Metal Tape to realize outstanding archival properties this model incorporates a number of special developments for 8mm Data Cartridges from improved magnetic tape to the hard cartridge case. Likewise the QGD160MB model attains superb archival performance thanks to increased reliability right down to its smallest components including the magnetic particles and binder.