3,81 mm Wide Magnetic Tape Cartridge
for Information Interchange - Helical Scan Recording - DDS Format
using 60 m and 90 m Length Tapes
This Ecma Standard specifies the physical and magnetic characteristics
of a 3,81 mm wide magnetic tape cartridge to enable interchangeability
of such cartridges. It also specifies the quality of the recorded
signals, the recorded format and the recording method, thereby
allowing data interchange between drives by means of such magnetic
tape cartridges. The format used is known as Digital Data Storage
This Ecma Standard specifies two types of cartridge which, for
the purpose of this Ecma Standard, are referred to as Type A and
For Type A, the magnetic tape has a nominal thickness of 13 Ám
and a nominal length of up to 60,5 m.
For Type B, the magnetic tape has a nominal thickness of 9 Ám
and a nominal length of up to 92,0 m.
Information interchange between systems by means of this Standard
also requires the use, at a minimum, of a labelling and file structure
and an interchange code which are agreed upon by the interchange
parties. It is not within the scope of this Standard to specify
the labelling and file structure, or the interchange code.
The following file can be freely downloaded:
||7 193 804
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 12247.