Category:Floppy Disk Drive Interfaces
This page was last modified 01:36, 6 January 2022 by Mars2000you. Based on work by Msxholder and Gdx and others.

Contents

Description

The floppy disk interface can be external or integrated with the floppy disk drive. It includes a ROM with

  • version 1 of Disk BASIC in most cases
  • version 2 of this BASIC extension for the drives of the MSX Turbo R machines and the Daisen Sangyo MX30B internal drive

Both 5.25 inch and 3.5 inch formats exist for the MSX, with 3.5" being by far the most popular. There was also the obscure 3 inch format which was used in Amstrad and Spectrum computers. Quick Disk is a format which was rarely used and is based as a enhanced sequential read/write medium.

3.5" media

3.5" Disk logos
3.5" Disk logos

Initial 3.5" disks on the MSX were single-sided (1DD), and could therefore only store 360kB, later models used double-sided drives (2DD) which can store 720kB.

The later 1.44MB (HD) type was never supported on MSX, except by the Daisen Sangyo MX-2021 with its interface MX30B (ultra rare). However, it is typically possible to use HD media and format it to lower capacity, but it is strongly recommended in that case to cover up the "HD" hole with a non-translucent tape, to prevent HD capable disk drives from getting confused.

A 3.5" disk formatted with a density of 180kB or 360kB (SS,DD) can also be read by an 720kB drive, it's been tested on a Turbo R.

5.25" media

5.25" drives existed in 180kB (single sided) and 360kB (double sided) capacities. They had some popularity in Brazil, but other then that quickly vanished from the market.

There was no standardised naming convention, as such every vendor used its own.

Capacity Type Possible names
180kB Single Sided, Double Density SSDD, 1S2D, MD1D
360kB Double Sided, Double Density DSDD, 2S2D, MD2D


The 5.25" 1.2MB HD variation was never used on MSX.

Some interfaces accept a 5.25" 80 tracks 720 kB disk, for example the Philips NMS 1200.

Filesystem

The filesystem used for disks is FAT12, which is compatible with the IBM PC. As such you may be able to read and write data to an MSX disk from a PC, but some newer drives, particular USB diskette drives may have problems with non-HD (1.44MB) capacities. Also, it seems modern Windows versions do not support capacities lower then 720kB, although that is not a problem for Linux.

Issues

The MSX system has reserved i/o adresses for an fdd controller, older disk interfaces are i/o based and assigns always A,B drive. There is only one i/o based interface posssible.

Some time later companies used slot memory adresses for the disk controller and different control adresses so multiple disk interfaces were implemented in MSX (more diskdrives).

As both disk drives and disks are known to have issues with age, you may face issues with head alignement, slack, broken or drive belts turned to goo or even disks that can no longer be read due to mould on the disk.

Lists

Interfaces sold separately

Model Type Format Notes
8bits4ever Emu-FDC 3.5" 720kB Uses standard PC drives
8bits4ever FDC-600 3.5" or 5.25" Uses standard PC drives
Angeisa Eletrônica Interface 3.5" or 5.25" Uses standard PC drives
CIEL Fast FDD Interface 3.5" or 5.25" Uses standard PC drives
Only 720kB and 1440kB support
Digital Design Interface DDX 3.5" or 5.25" Designed for Digital Design Drive DDX
Uses standard PC drives
DMX Interface para drive 3.5" or 5.25" Designed for DMX Drive
Uses standard PC drives
Fractal2000 Floppy Disk Interface 3.5" or 5.25" Uses standard PC drives
Hitachi MPC-310H 3.5" 720kB Designed for Hitachi MPF-310H
Has 2 separate connectors A,B
JVC/Victor HC-FC303 3.5" 360kB Designed for JVC/Victor HC-F303
Microsol CDX-1
Microsol CDX-2 3.5" or 5.25" Uses standard PC drives
Mitsubishi ML-30DC 3.5" 720kB Designed for Mitsubishi ML-30FD
National FS-CF351 3.5" 720kB Designed for National FS-FD351
Philips NMS 1200 3.5" 720kB Uses standard PC drives
Sharp HB-3600 3.5" or 5.25" Designed for Sharp HB-6000
Sony HBK-30 3.5" 720kB Designed for Sony HBD-30W
Spectravideo SVI-717
Talent TDC-600 3.5" or 5.25" Uses standard PC drives
Yamaha FD-051 3.5" 720kB Designed for Yamaha FD-05


External drives with interface

Note: the interface is generally separated from the drive, but some models have the interface integrated in the drive or combined with the drive into a single unit.

Model Type Format Notes
AVT DPF-550 5.25" 180kB Interface + drive
Bawareth Perfect CPF-350 3.5" 360kB Integrated interface
Canon VF-100 3.5" 720kB Interface + drive
CE-TEC DPF-550 5.25" 180kB Interface + drive
Daewoo CPF-350 3.5" 360kB Integrated interface
Daewoo CPF-360 3.5" 720kB Integrated interface
Daewoo DPF-510 5.25" 360kB Interface + drive
Daewoo DPF-520 5.25" 360kB Interface + drive
Daewoo DPF-550 5.25" 180kB Interface + drive
Daewoo DPF-555 5.25" 360kB Interface + drive
Digital Design Drive DDX 5.25" 360kB Digital Design Interface DDX
DMX Drive 5.25" 360kB DMX Interface para drive
+ DMX Fonte para drive
Dynadata CPF-350 3.50" 360kB Integrated interface
Dynadata CPF-360 3.50" 720kB Integrated interface
Dynadata DPF-550 5.25" 180kB Interface + drive
Fenner DD-300 3.5" 720kB Integrated interface
Fenner DD-400 3.5" 720kB Interface + drive
Hitachi MPF-310H 3.5" 720kB Hitachi MPC-310H interface
Hobby Tradeco Kit 5.25" 360kB Interface + drive
JVC/Victor HC-F303 3.5" 360kB JVC/Victor HC-FC303 interface
Liftrom Disk Drive 5.25" 180kB Interface + drive
Uses standard PC drives
Mitsubishi ML-30FD 3.5" 720kB Mitsubishi ML-30DC interface
National FS-FD351 3.5" 720kB National FS-CF351 interface
Panasonic FS-FD1 3.5" 720kB Interface + drive
Panasonic FS-FD1A 3.5" 720kB Single unit
Philips VY-0010 3.5" 360kB Interface + drive
Sakhr AFD-01 3.5" 360kB Interface + drive
Sakhr FD720 3.5" 720kB Single unit
Sanyo MFD-001 5.25" 360kB Interface + drive
Sanyo MFD-35 3.5" 360kB Interface + drive
Sharp HB-6000 5.25" 360kB Sharp HB-3600 interface
Sony HBD-20W 3.5" 720kB Interface + drive
Sony HBD-30W 3.5" 720kB Sony HBK-30 interface
Sony HBD-50 3.5" 360kB Interface + drive
Sony HBD-F1 3.5" 720kB Interface + drive
Spectravideo SVI-707 5.25" 320kB Integrated interface
Talent CPF-350 3.5" 360kB Integrated interface
Talent CPF-360 3.5" 720kB Integrated interface
Talent DPF-550 5.25" 180kB Interface + drive
Talent DPF-555 5.25" 180kB (S)
360kB (D)
Interface + drive
TEC FB-202 5.25" 180kB Interface + drive
Technoahead Leopard DT-300 3.5" 360kB Interface + drive
Uses standard PC drives
Technoahead Leopard DT-350 3.5" 720kB Interface + drive
Uses standard PC drives
Toshiba HX-F100 3.5" 360kB Interface + drive
Toshiba HX-F101 3.5" 360kB
or 720kB
Interface + drive
TPX Drive 5.25" ?360kB Interface + drive
Uses standard PC drives
Triton Dual FDD 5.25" 180kB CP/M only, no DISK Basic
Wandy FZ 502 5.25" 360kB Interface + drive
Yamaha FD-01 3.5" 360kB Interface + drive
Yamaha FD-03 3.5" 360kB Interface + drive
Yamaha FD-05 3.5" 720kB Yamaha FD-051 interface


External second drives

Model Type Format Notes
Daewoo DPF-560 5.25" 360kB To use with Daewoo DPF-550 or DPF-555
Philips VY-0011 3.5" 360kB To use with Philips VY-0010
Sanyo MFD-002 5.25" 360kB To use with Sanyo MFD-001
Sony HBD-30W 3.5" 720kB To use with HB-F500 or HB-F700 computers
Spectravideo SVI-787 3.5" 360kB
or 720kB
To use with Spectravideo SVI-738
Talent DPF-560 5.25" 360kB To use with Talent DPF-550 or DPF-555
Talent TPF-723 5.25" 360kB To use with Talent DPF-550 or DPF-555
Talent TPF-725 5.25" 360kB To use with Talent DPF-550 or DPF-555
Yamaha FD-031 3.5" 360kB To use with Yamaha FD-03


Internal drives sold separately

Model Type Format Notes
Daisen Sangyo MX30A 3.5" 720kB For Daisen Sangyo MX-2021 only
Daisen Sangyo MX30B 3.5" 720kB
or 1440kB
For Daisen Sangyo MX-2021 only
Mitsubishi ML-30FP(W) 3.5" 720kB 2nd drive for Mitsubishi ML-G30 Model 1
? Pioneer HXP101 3.5" 720kB 2nd drive for Pioneer UC-V102
Sony HBD-100 3.5" 360kB For Sony HB-701 only
Sony HBD-G900 3.5" 720kB 2nd drive for Sony HB-G900AP, HB-G900D, HB-G900F
and HB-G900P
Toshiba HX-F103 3.5" 720kB 2nd drive for Toshiba HX-34
Yamaha EFD-10 3.5" 720kB 2nd drive for Yamaha YIS-805/128 and YIS-805/128R2


Computers with built-in drives

Model Generation Drives Type Format
Canon V-30F MSX2 1 or 2 3.5" 720kB
Daewoo CPC-400 MSX2 1 or 2 3.5" 720kB
Daewoo CPC-400S MSX2 1 or 2 3.5" 720kB
Fenner FPC-900 MSX2 1 or 2 3.5" 720kB
Gradiente Expert DDPlus MSX1 1 3.5" 720kB
Hitachi MB-H70 MSX2 2 3.5" 720kB
Kawai KMC-5000 MSX2 1 3.5" 720kB
Mitsubishi ML-G3 MSX2 1 or 2 3.5" 720kB
Mitsubishi ML-G30 Model 1 MSX2 1 or 2 3.5" 720kB
Mitsubishi ML-G30 Model 2 MSX2 2 3.5" 720kB
Mitsubishi ML-TS100 MSX2 1 3.5" 720kB
Mitsubishi ML-TS100M2 MSX2 2 3.5" 720kB
National CF-3300 MSX1 1 3.5" 720kB
National FS-4600F MSX2 1 3.5" 720kB
National FS-4700 MSX2 1 3.5" 720kB
National FS-5000F2 MSX2 2 3.5" 720kB
National FS-5500F1 MSX2 1 3.5" 720kB
National FS-5500F2 MSX2 2 3.5" 720kB
Panasonic FS-A1F MSX2 1 3.5" 720kB
Panasonic FS-A1FM MSX2 1 3.5" 720kB
Panasonic FS-A1FX MSX2+ 1 3.5" 720kB
Panasonic FS-A1GT Turbo R 1 3.5" 720kB
Panasonic FS-A1ST Turbo R 1 3.5" 720kB
Panasonic FS-A1WSX MSX2+ 1 3.5" 720kB
Panasonic FS-A1WX MSX2+ 1 3.5" 720kB
Philips HCS 280 MSX2 2 3.5" 720kB
Philips NMS 8245 MSX2 1 3.5" 720kB
Philips NMS 8250 MSX2 1 or 2 3.5" 720kB
Philips NMS 8255 MSX2 2 3.5" 720kB
Philips NMS 8280 MSX2 1 or 2 3.5" 720kB
Philips VG-8230 MSX2 1 3.5" 360kB
Philips VG-8235 MSX2 1 3.5" 360KB
Philips VG-8240 MSX2 1 3.5" 360kB
Phonola NMS 8245 MSX2 1 3.5" 720kB
Phonola NMS 8280 MSX2 2 3.5" 720kB
Phonola VG-8235 MSX2 1 3.5" 360kB
Pioneer UC-V102 MSX2 1 or 2 3.5" 720kB
PTC MSX PC MSX2 1 3.5" 720kB
Sakhr AX-350 MSX2 1 3.5" 720kB
Sakhr AX-350II MSX2 1 3.5" 720kB
Sakhr AX-370 MSX2 1 3.5" 720kB
Sakhr AX-500 MSX2 2 3.5" 720kB
Sanyo MPC-25F MSX2 1 3.5" 360kB
Sanyo MPC-25FD MSX2 1 3.5" 720kB
Sanyo MPC-25FK MSX2 1 3.5" 720kB
Sanyo MPC-25FS MSX2 1 3.5" 360kB
Sanyo MPC-27 MSX2 1 3.5" 360kB
Sanyo MPC-2500FD MSX2 1 or 2 3.5" 720kB
Sanyo PCT-100 MSX2 1 3.5" 720kB
Sanyo PHC-55FD2 MSX2 2 3.5" 720kB
Sanyo PHC-70FD MSX2+ 1 3.5" 720kB
Sanyo PHC-70FD2 MSX2+ 2 3.5" 720kB
Sanyo PHC-77 MSX2 1 3.5" 720kB
Sony HB-701FD MSX1 1 3.5" 720kB
Sony HB-F1XD MSX2 1 3.5" 720kB
Sony HB-F1XDJ MSX2+ 1 3.5" 720kB
Sony HB-F1XDmk2 MSX2 1 3.5" 720kB
Sony HB-F1XV MSX2+ 1 3.5" 720kB
Sony HB-F500 MSX2 1 3.5" 720kB
Sony HB-F500F MSX2 1 3.5" 720kB
Sony HB-F500P MSX2 1 3.5" 720kB
Sony HB-F700D MSX2 1 3.5" 720kB
Sony HB-F700F MSX2 1 3.5" 720kB
Sony HB-F700P MSX2 1 3.5" 720kB
Sony HB-F700S MSX2 1 3.5" 720kB
Sony HB-F750 MSX2 1 3.5" 720kB
Sony HB-F900 MSX2 2 3.5" 720kB
Sony HB-G900AP MSX2 1 or 2 3.5" 720kB
Sony HB-G900D MSX2 1 or 2 3.5" 720kB
Sony HB-G900F MSX2 1 or 2 3.5" 720kB
Sony HB-G900P MSX2 1 or 2 3.5" 720kB
Sony HB-T600 MSX2 1 3.5" 720kB
Spectravideo SVI-738 MSX1 1 3.5" 360kB
Toshiba HX-34 MSX2 1 or 2 3.5" 720kB
Victor HC-90 MSX2 1 3.5" 720kB
Victor HC-95 MSX2 2 3.5" 720kB
Yamaha YIS-805/128 MSX2 1 or 2 3.5" 720kB
Yamaha YIS-805/128R2 MSX2 1 or 2 3.5" 720kB
Yamaha YIS-805/256 MSX2 2 3.5" 720kB


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