title: Extracting jpegs from a disk dump
body: <p>I've got a 16GB memory card off someone that won't load properly (asks to be reformatted). I'm trying to get jpegs off it.</p>
  
  <p>I've run <code>dd</code> to dump the contents to a file, which worked splendidly. The file won't mount and be read, so the contents are corrupt in someway.</p>
  
  <p>Opening the dump in a hex editor shows that there is data on there, and by looking for the markers for the start and end of a jpeg (FFD8 and FFD9), I've been able to manually extract the first 3 jpegs.</p>
  
  <p>Before I go and write some code to stream the file, find the offsets and dump the files, is there any existing way to do this? I can't find anything with a simple google search, but don't want to solve a problem which must have been solved many times before.</p>
  
  <p>Does anyone know of either some software or a decent library (Python would be nice as I'm familiar with the language, though anything would do) that will easily let me extract the jpegs, or am I better off just writing the code myself?</p>