DISKCOMP + Comparing DisksCompares disks.
VERSION
PC-DOS 2.0+ (revised from 1.1)
MS-DOS equivalent: DISKCOMP (2.0+)
TYPE
External
SYNTAX
[d:][path] DISKCOMP [sd: [td:]] [8]
OPTIONS
[d:][path] Specifies the drive letter and path that
contain the DISKCOMP command file.
[sd:] Specifies the source drive letter.
[sd:] Specifies the target drive letter.
/1 Compares only the first side of a two-
sided disk.
/8 Specifies that only eight sectors per
track are to be compared.
DISKCOMP is used to verify the readability of a disk,
usually after a DISKCOPY operation.
EXAMPLES
DISKCOMP A: B:
compares the disk in drive A with the disk in drive B.
DISKCOMP A: A:
compares the disk in drive A to another disk that you will be
prompted to insert in drive A.
MESSAGES
Compare error(s) on new line
Track xx, side yy
There is a discrepancy between the two compared disks on the
track and side indicated.
Compare more diskettes (Y/N)?
Enter Y to compare another set of disks; otherwise, enter N.
Comparing x sectors per track, n side(s)
This message indicates whether one or two sides are being
compared and whether eight or nine sectors are being compared.
Diskettes compare OK
Identical information is located in identical sectors on the two
disks.
Diskette/Drive not compatible
The destination disk or drive is different from the source disk
or drive. You may be trying to compare a double-sided disk to a
single-sided disk, for example. Use the same type of disks and
drives and try again.
Insert first diskette in drive x
Insert second diskette in drive y
Strike any key when ready
Insert the disks to be compared as specified. Then press any key.
Make sure a diskette is inserted into
the drive and the door is closed
The drive door is open, or the drive is empty. Close the door or
insert a disk and try again.
Specified drive does not exist,
or is non-removable
The drive you specified is a hard disk or does not exist on your
computer. Check the drive name and try again.
Unrecoverable read error in drive x
Track yy, side z
The unreadable data is located on the track and side indicated.
NOTE
Version 1.0 does not work with two-sided drives. Later
versions work with nine sectors per track. DISKCOMP compares all
40 tracks on a track-by-track basis and issues an error message
if any tracks do not match. If an error is located, the
comparison operation ends, indicating that you should probably
make a new copy of the disk. Only similar disks may be compared:
single-sided to single-sided, or double-sided to double-sided.
The drives used with DISKCOMP cannot be virtual disks, such as
one created by using the SUBST command. In addition, do not use
DISKCOMP when the JOIN command is in effect.
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[For related topics, press R]
SEE ALSO
ASSIGN Command
COMP Command
DISKCOPY Command
JOIN Command
RECOVER Command
SUBST Command
file: /Techref/dos/command/diskcomp.htm, 3KB, , updated: 1999/2/20 11:24, local time: 2024/9/1 04:01,
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