Does anyone's memory card constantly need formatting with the 9800? I was using it in my Storm 2, no problems whatsoever, as soon as inserted it into the 9800. I got the error, and it happens so often. My memory card was full, and I had pictures from holiday (and chat logs), but this time around I just couldn't be bothered to run ZAR and wait hours for it to recover ifles, and also give a lot of useless 800 MB files.
Some memory cards get outdated, corrupt and with too many files on them. If it needs formatting do it on your PC as it will fix the errors accurately. I find one pc format does the trick.