Possibly. Important: Take no more video with the Flip until you've recovered the videos! This is to reduce the chance of you overwriting some of your "lost" wedding videos. There are many good freeware photo/video recovery software options that may help you recover your videos. This article reviews and outlines several of the better ones. Try for the ones that are listed in the article as being capable of recovering videos. If these don't work for you (but really they should if you just simply erased the videos), you might want to try some of the payware versions (with free preview features), or consider professional video recovery services.