12,65 mm Wide Magnetic Tape Cartridge
for Information Interchange - Helical Scan Recording - DATA-D3-1
2nd edition (December 1995)
This Ecma Standard specifies the physical and magnetic characteristics of a magnetic tape cartridge, using magnetic tape 12,65 mm wide, so as to provide physical interchangeability of such cartridges. It also specifies the quality of the recorded signals, the recording method and the recorded format, thereby allowing data interchange between drives by means of such magnetic tape cartridges.
This Ecma Standard specifies three types of cartridge which, for the
purposes of this Standard, are referred to as Type A, Type B and Type C.
For Type A, the magnetic tape has a nominal length of 91 m and a nominal
capacity of 10 GBytes.
For Type B, the magnetic tape has a nominal length of 204 m and a nominal
capacity of 25 GBytes.
For Type C, the magnetic tape has a nominal length of 392 m and a nominal
capacity of 50 GBytes.
Together with a Standard for Volume and File Structure this Standard
provides for full data interchange between data processing systems.
The following files can be freely downloaded:
|| 1 291 650
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 14840.
The previous replaced "historical" edition of this Ecma Standard is available here.