Delayed write failed.

How do you access your data? Do you have a card reader? I guess you tried to access the card like that.
I'll suggest to try to plug you camera to the computer. You probably have an USB cable with it.
Some cameras have formats that windows doesn't always understand.

Additional info: The laptop I was view these files on rebooted. The after the reboot process I was no longer able to see the files.

I cannot see them on a PC through a reader. I cannot see them on the laptop with a built in reader. I cannot see them in the camera.

Navigate to the following URL and read the second question and answer. It contains instructions for checking the BIOS and disabling write caching. Lastly, it could be the hard drive failing.

http://www.smartcomputing.com/editorial/article.asp?article=articles/2003/s1407/39s07/39s07.asp&articleid=14979

If you can no longer see the pictures on the camera then most likely they have been lost but just maybe you'll be able to recover them with one of the following. Just remember that if you have a [b]Card Reader[/b] to always remove any cards from it before rebooting 99 times out of 100 there will be no affect but you can guarantee on the 1 in a 100 that something does go wrong it will be with something really important that is not replaceable.

http://www.x-ways.net/davory/index-m.html

http://www.getdata.com/

http://www.iolo.com/sr/3/

http://www.ontrack.com/Homepage.aspx?id=3&pagename=Software

http://www.pcinspector.de/file_recovery/UK/welcome.htm

http://www.stellarinfo.com/

http://www.bitmart.net/r2k.shtml

http://www.winternals.com/

One of the above programs should be able to recover the data if it hasn't been overwritten.

Just remember to save any recovered files to your HDD and not the the Memory Card.

Col