The description below is from the book DOS the
Easy Way by Everett Murdock Ph.D.
for information about downloading the book.
Type: External (1.0 and later)
DISKCOMP [d:] [d:][/1][/8]
Purpose: Compares the contents of two diskettes.
DISKCOMP compares two disks, track by track, and displays the numbers of
that are not identical.
If you enter only one drive designation, DISKCOMP compares with the disk
currently active drive.
If you enter one drive designation that is the same as the current drive
you don`t enter a drive), the comparison will take place on one drive.
will prompt you when it is time to insert each disk to be compared.
Disks copied using the DISKCOPY command should be reported to be
checked using this command; however, disks copied using the COPY command
be identical since DOS may not copy files to the same locations on the
/1 - Causes only the first side of the disk to be compared (even if
the disk is double-sided).
/8 - Causes only 8 sectors per track to be compared (even if the disk
contains a different number of sectors per track).
If differences are found on a track, the program will display an
explanatory message. For example, if track eight on side one are not the same, DOS