Registrations are now open. Join us today!
There is still a lot of work to do on the wiki yet! More information about editing can be found here.
Already have an account?

Microsoft KB Archive/103816

From BetaArchive Wiki
Knowledge Base


Err Msg Swapping Disk on Floptical Drive: Invalid Disk...

Article ID: 103816

Article Last Modified on 11/17/2003



APPLIES TO

  • Microsoft MS-DOS 6.0 Standard Edition
  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.21 Standard Edition



This article was previously published under Q103816

SYMPTOMS

If you change media on a Bernoulli SCSI floptical drive, you may receive the following error message:

Invalid disk change reading <letter>
Please insert volume <XXXXXXXX> serial 0070-06f4
Abort, Retry, Fail?

where <XXXXXXX> contains random characters (if the disk has no label) or the label of the previous disk that was read.

This problem can occur on floptical drives that support several different media (such as drives that support 21 MB, 1.44 MB, and 720K). If you alternate between uncompressed and compressed and 1.44-MB and 21-MB disks, you may receive the error message noted above.

CAUSE

This situation occurs because of a problem in the floptical device driver. The driver does not detect media changes when the disk does not have a volume serial number.

RESOLUTION

To work around this problem, ensure each disk has a volume serial number.

All disks formatted with MS-DOS version 4.0 or later have a serial number; however, many pre-formatted disks do not.


Additional query words: 6.22 6.20 floppy

Keywords: KB103816