Information technology - 8 mm wide magnetic tape cartridge dual azimuth format for information interchange - Helical scan recording
STANDARD published on 23.12.1993
Designation standards: ISO/IEC 12246-ed.1.0
Publication date standards: 23.12.1993
The number of pages: 66
Approximate weight : 198 g (0.44 lbs)
Country: International technical standard
Category: Technical standards ISO
This International Standard specifies the physical and magnetic characteristics of an 8 mm wide magnetic tape cartridge to enable interchangeability of such cartridges. It also specifies the quality of the recorded signals, the format and the recording method, thus allowing, together with ISO 1001 for Magnetic Tape Labelling, full data interchange by means of such magnetic tape cartridges. It is based on ISO/IEC 11319, but uses Dual Azimuth Recording to allow the raw capacity to be doubled. The format supports variable length Logical Records, high speed search, and the use of a registered data compression algorithm. La presente Norme internationale specifie les caracteristiques physiques et magnetiques dune cartouche a bande magnetique de 8 mm de large, dans le but de permettre linterchangeabilite de telles cartouches. Elle specifie egalement la qualite des signaux enregistres, le format et la methode denregistrement, permettant ainsi, avec lISO 1001 relative a letiquetage des bandes magnetiques, un echange total de donnees au moyen de telles cartouches a bande magnetique. La presente norme est basee sur lISO/CEI 11319, cartouche a bande magnetique de 8 mm de large pour echange dinformation -- a enregistrement helicoidal --, mais utilisant un enregistrement «double azimut» qui permet de doubler la capacite brute. Le format autorise des enregistrements logiques a longueur variable, une recherche a haute vitesse, et lutilisation dun algorithme de compression de donnees enregistre.