If you’ve attempted to upload any video from an iPhone 3GS to Flickr, you’ve probably seen Flickr’s “Unable to process this video” screen no matter how you uploaded it. The iPhone’s MOV files aren’t supported by Flickr due to the codec it uses. A very simple solution is to export it as AVI from QuickTime Pro or any other media converter. You can then upload the exported AVI movies to Flickr.