DISKETTE

Purpose:    Sets permissible diskette types.

Syntax:     DISKETTE = <EXTSIGN|DOS3>

By default: DISKETTE = DOS3

Note:
     System support of a floppy disk implies that when changing a diskette,
all the internal data structures associated with the specified device should
be renewed, and a check on all the information possibly not recorded onto a
previous diskette (for example, files which have been modified were not
closed) should be carried out. Diskette format programs designed for older
DOS versions didn't create a unique record in the boot sector, that helps
detect a change of diskettes. Without such records the system compares
diskettes by their formats. It is of course a non-reliable comparison and
there is always a chance of data loss when mishandling diskettes. The
DISKETTE = EXTSIGN instructs the system to work only with diskettes having
an unique label.

Warning!  Many format programms don't support the extended diskette boot
          sector format.  Using DISKETTE = EXTSIGN is recommended only with
          disk drives without change line.