I'm having a similar problem as the rest of the posters to this thread. I got the same error trying to import photos and videos from my Kodak EasyShare Z712 IS.
I agree, the problem seems to be with the handling of Kodak EasyShare video files with Snow Leopard.
Here's an experiment I did:
My vacation photos and videos (one of which was several minutes long) would not import to my iMac using iPhoto '09 8.1.2 on OS 10.6.4. They also would not import with Image Capture, no matter which option I selected (iPhoto, Image Capture, Preview, etc.)
But on my spouse's Mac Book Pro, using iPhoto 8.1.2 on OS 10.5.8, they all imported fine from the same camera. (I was then able to copy them from iPhoto to a folder, and then from the folder to a flash drive, and move them to my iMac and import using iPhoto. 20 minutes of my life I'll never get back.)
After deleting the original set of photos and videos from the camera, I had no trouble importing new photos taken with my Kodak into my iPhoto. But when I tried taking just a short test video, I wasn't able to import at all -- in fact, the "Import" buttons were grayed out, and the video was an empty box. Image Capture also gave error results again.
I'm posting this to the Mac OS X Feedback page, so now they'll have heard about it twice.