CAN/CSA-ISO/IEC 17462-04 (R2014)

Section 1 - General
1 Scope
2 Conformance
3 Normative references
4 Definitions
5 Conventions and Notations
6 Acronyms
7 Environment and safety
Section 2 - Requirements for the case
8 Dimensional and mechanical characteristics of the case
Section 3 - Requirements for the unrecorded tape
9 Mechanical, physical and dimensional characteristics
   of the tape
10 Magnetic recording characteristics
Section 4 - Requirements for an interchanged tape
11 Format
12 Method of recording
13 Track geometry
14 Recorded patterns
15 Format of a track
16 Layout of a Single Data Space tape
17 Layout of a partitioned tape
18 Housekeeping Frames
Annex A - Measurement of the light transmittance of the
          prisms
Annex B - Measurement of light transmittance of tape and
          leaders
Annex C - Measurement of Signal-to-Noise Ratio
Annex D - Method for determining the Nominal and the Maximum
          Allowable Recorded Levels
Annex E - Representation of 8-bit bytes by 10-bit patterns
Annex F - Measurement of bit shift
Annex G - Measurement of track edge linearity
Annex H - Tape abrasicity measurement procedure
Annex J - Method of measurement of the track width
Annex K - Recognition Holes
Annex L - Means to open the lid
Annex M - Recommendations for transportation
Annex N - Read-After-Write
Annex P - Example of the content of a Basic Group No. 0

Scope This International Standard specifies the physical and magnetic characteristics of a 3,81 mm wide magnetic tape cartridge to enable physical interchangeability of such cartridges between drives. It also specifies the quality of the recorded signals, the recording method and the recorded format - called Digital Data Storage 4 (DDS-4) - thereby allowing data interchange between drives by means of such magnetic tape cartridges. Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange code(s) and the specifications of the structure and labelling of the information on the interchanged cartridge. Under information interchange circumstances in which a processing algorithm, e.g. for lossless data compression as specified in ISO/IEC 11558, is applied to the host data prior to recording on the tape and a complementary reprocessing algorithm is applied after the data is read from the tape, agreement upon these by the interchange parties is also required.

Scope This International Standard specifies the physical and magnetic characteristics of a 3,81 mm wide magnetic tape cartridge to enable physical interchangeability of such cartridges between drives. It also specifies the quality of the recorded signals, the recording method and the recorded format - called Digital Data Storage 4 (DDS-4) - thereby allowing data interchange between drives by means of such magnetic tape cartridges. Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange code(s) and the specifications of the structure and labelling of the information on the interchanged cartridge. Under information interchange circumstances in which a processing algorithm, e.g. for lossless data compression as specified in ISO/IEC 11558, is applied to the host data prior to recording on the tape and a complementary reprocessing algorithm is applied after the data is read from the tape, agreement upon these by the interchange parties is also required.