Teac FD-55 Series - 203

There are many types in the commercially available soft sectored disks
which are classified according to the following factors. Select the most
appropriate one for your application.
(1) Oata recording density
Single density (FM method) or Double density (MFM method)
Da not use a single density disk for a double density recording.
Expected data reliability will not be obtained and error may occur.
A double density disk can be used for a single density recording.
All the models of FD-55A~F are used for both single and double
density recordings.
(2) Number of used sides
Single sided (only side 0 can be used) or double sided (both sides 0 and
1 can be used).
Use a double sided disk for a double sided FDD. If a single sided disk
is used for a double sided FDO
,
data reliability of the side 1 might be
degraded.
A double sided disk can be used for a single sided FDO.
(3) Track density
48tpi or 96tpi.
It is recommended to use a disk of the same track density as the track
density of an FOO. If a 48tpi disk is used for a 96tpi FOO
,
the data
reliability might be degraded rarely.
Though such an application of using a 96tpi disk for a 48tpi FOD does not
cause practical problem, it is not thoughtful to use in that way.
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