recover pictures and videos from a corrupted backup

I recently had to restore my iphone to factory settings. My phone had not been backing up for about a month, it said that the backup could not be saved on the computer. I thought I had it figured out, but before I could get a recent backup, my iphone crashed. Itunes attempted a backup, and actually wrote files to the .../mobilesync directory, but I itunes does not recognize the backup. Is there a way to extract my pictures and videos from the files?