I have just discovered that for many of the photos we have in our files, the property "propertytagimagedescription" contains "OLYMPUS DIGITAL CAMERA". It shows up in our Description field because it is mapped to our Description property. The problem is that I can't edit it to include an actual description of the photo. I tried editing the Description on the data card and saving it, but when I switch to a different file and then back again, the original "OLYMPUS..." is back. How can I get that field to keep my edits? I know I can remove the mapping to that property so that the value won't show up anymore, but I'd prefer to be able to change that property.