<hr><i>anonymous claiming to be zachtodd added on 2010-05-21 13:25:59:</i><br>
Just tried this locally by uploading a gif and reproduced the same error.  

46dd273456�䟿��,@��䟿�

Looks like the valid hash followed by garbage.  Maybe missing a null terminator?

I'll try to find out what's going on and fix it if possible.