Comment 1 for bug 411193

There is an option on the import dialog to include the photo timestamp to the filename, as well as adding counter to the end of the filename. The effectively makes it unique in most cases (unless you're shooting with several cameras simultaneously).

I set digikam to rename imported files prefixing them with "photo_" and including a custom format timestamp using the format "yyyyMMddThhmmss". The custom format is the ISO format with punctuation removed. The reason I remove punctuation is that sometimes I have to copy photos to windows and windows won't accept colons in file name.

So my imports end up with filenames that look like this:

photo_20090521T162036-000001.JPG
photo_20090521T162654-000002.JPG
... etc

I like the timestamp in the filename personally; but for users who don't want to set this up, it does seem like a good idea to me to have a simple "auto rename" option that can persist between import sessions... perhaps prompting the user the first time, but once selected never bothers them again (ever).