Variant Details

Main Image: Top / Obverse
Additional Image: Bottom / Reverse
Product Name 3 ½” Floppy Disk HD 3.5" diskette digital data disk
double sided/high density (2HD),
double sided
Variant ID V0000703
Name of Holotype 3 ½” Floppy Disk HD
double sided/high density (2HD),
double sided/extended density (2ED)
Holotype ID H000091
Product Code/Number
Manufacturer Imation - 3M
Genre(s) Data
Carrier Type disk cartridge
Process Type magnetic
Medium Type floppy disk
Standards IBTN/EBU: FD3
Market Professional
Height 94 mm
Width 90 mm
Depth 3 mm
Running Length
Marketed Capacity 1440 Kb
Materials Floppy magnetic disk media within rigid plastic cartridge.
Distinguishing Features HD Disk (on upper Corner or Shutter) A rigid variable coloured plastic case with a slideable write protect catch in one corner and a similarly shaped hole (no protection slide) in the other corner.
Collection of: National Library of Australia
Created by Douglas Elford-NLA
Assessment Summary Digital Preservation assistance required for transfer from existing media to the managed digital storage system. (modest effort)
Remarks 1.44 - 2.88 Mb
Production Started 1987
Production Stopped 1987
Application Binder
Binder Stability
Base material
Back Treated

Back Treated: (μm) or (μ")

Base Thickness: (µm) or (µ")

Dye/Emulsion/Oxide Thickness: (μm) or (μ")

Total Thickness: (µm) or (µ")

Coercity: (Oe) or (kA/m)

Retentivity: (Gauss) or (mT)

Remanence: (nWb/m) or (SatFlux)
PDF Web Link
Image 3 Macro
Image 4 Macro
Required Devices 3 ½” Floppy Disk High Density drive
Required Interface
Required Operating System
Required Applications
Formated Capacity Mac and PC
1D (SS/SD 90K tpi67.5),
1D (SS/DD 180K tpi67.5), 1D (SS/DD 360K tpi135),
2D (2S/DD 720K tpi135), 2HD (2S/HD 1440K tpi135), 2ED 2S/ED 2880K tpi135). Capacity is approximate formatted capacity.
Required Drivers
Formating Type
Required Accessories
Required Form Factor
Requirement Specifications
Transfer Rate
Recording Format
Number Of Cylinders
Colour Space
Block Error Rate
Push Pull Signal
Read Stability
Life: Manufacturer
Life: Community 5 yrs.
Web Ref: Materials
Substrate Stability
Image Stability
Re-Formatting Issues
Web Ref: Re-Formatting
Web Ref: Conservation
Web Ref: Environment
Date Created 08/09/2011
Last Modified by Douglas Elford-NLA
Date Modified 08/09/2011

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