== Custom floppy disk formats ==
Usually single sided 40-track 3" disk drives are used in CPCs. For practical purposes, 42 tracks could be used — the limit is specific to the drive and some support more tracks but 42 is a good maximum.
The FDC controller can be used to control 80-tracks and/or double sided drives, though AMSDOS doesn't support such formats.
AMSDOS supports a maximum of two disk drives only.
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