My desktop will not recognize the TEAC Mad Dog FD-05PUW floppy disk reader I need to use to read old floppies. When plugged in I hear the recognition chime, but nothing shows up in Directory

The floppy drive disk may be corrupted, defective or just plain formatted in a format not recognized by your computer. Linux file on Windows, or Mac File on Windows.)

Try a brand new disk put something on it and go from there the disk you may be using may be no good anymore. Try this first before getting another replacement disk I would stop using these floppy and go to a USB Stick for storage purposes since they are going obsolete. Just a suggestion! That would solve your problem using floppies for storage besides they do not hold much information compared to todays storage devices. John

Solution 1.
Try using the Installation CD or Utiltity CD that came with your drive to format it.

If theres a Utility CD then install it on your computer and try formating it from the utility application.

If the windows error messages still persist then try formating it with the windows default options or NTFS option.

You should be able to get help from windowsdriverhelp.com

http://www.windowsdriverhelp.com/landing/driver/wdh/driver.php?sc=g&cp=s&key=mad%20dog%20driver&kw=13075

Take the drive from the enclosure, remove the top cover from the floopy drive, you should be able to GENTLY remove the floppy shield. Try not to stress the heads or wiring inside of drive. The floppy shield should come out the front.

the easiest way to the the right one is to go on the developer's company web page. almost all companies have driver downloads available.

If you call TEAC and can verify the date of purchase they should be able to RMA it and replace it.

http://members.driverguide.com/driver/detail.php?driverid=45332

Have you tried WWW.Driverguide.com - Generally I have found all the drivers I need there. Else try the manufacturer's web site at www.teac.com